40 95 34 Process Control Network I_O Spec.pdf

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Attached to
Skytop Lodge Sewage Treatment Plant Improvements Project – Contract : 2026-01- Project Number 005153. 0436
Solicitation number
Not on record
Issued by
Monroe County, Pennsylvania

About this file

This is a Process Control Network Input/Output Specification document prepared by Herbert, Rowland & Grubic, Inc. for the Skytop Lodge Sewage Treatment Plant Improvements Project (005153.0436) located in Canadensis, Pennsylvania. The specification establishes the input/output requirements for the SCADA (Supervisory Control and Data Acquisition) operating system that will monitor and control multiple treatment processes. The project encompasses an influent screening system, equalization tank, chemical feed system, two clarifier tanks, post-aeration tank, and UV disinfection system. The I/O list identifies all monitoring and control points across five primary control panels: Influent Screen Control Panel (10-CP-101), Equalization Tank Control Panel (10-CP-102), Recirculation Wet Well & Secondary Clarifier Control Panel (40-CP-400), and an Autodialer system (40-AD-400). The specification includes detailed configurations for analog inputs (AI), discrete inputs (DI), analog outputs (AO), and discrete outputs (DO), with signal types ranging from level measurements and pump operation controls to motor overload and temperature monitoring. A pre-bid conference was scheduled for August 25, 2026 at 10:30 AM at the Skytop Lodge STP facility, with bids due on September 18, 2026 at 10:00 AM through PennBid. The contractor is responsible for software configuration, system integration, field installation, wiring termination, on-site startup, and demonstration of all monitoring and control functions.

The specification requires submittals including specific equipment lists with manufacturer details, specification sheets for all proposed items, a compliance letter identifying any bid exceptions, and detailed shop drawings with point-to-point wiring diagrams. All installed components must comply with recognized testing laboratory standards (UL or comparable) and meet applicable industry standards including ANSI, IEEE, EIA, and NFPA standards. The contractor must provide a 12-month warranty on all components and materials commencing upon owner acceptance. Installation requirements mandate compliance with UL508 labeling standards, use of terminal blocks for all wiring connections, segregation of analog and signal wiring from high-voltage circuits, and proper routing of specialized communications cables (4-20mA, Ethernet, RS-232, RS-485, DF1, DH-485) directly from source to destination without spare coils. Quality assurance includes manufacturer's inspection and approval of the installation, comprehensive field testing prior to owner acceptance, and a final demonstration by a qualified supplier representative to owner personnel confirming all systems operate as designed.

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40 95 34 – PROCESS CONTROL NETWORK INPUT/OUTPUT LIST

Herbert, Rowland & Grubic, Inc. 40 95 34-1 005153.0436

SECTION 40 95 34 – PROCESS CONTROL NETWORK INPUT/OUTPUT LIST

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. This section includes a listing of all Inputs and Outputs for each control panel.

1.2 REFERENCES

A. The publications listed below form a part of this specification to the extent referenced.

The publications are referred to in the text by the basic designation only.

B. American National Standards Institute (ANSI):

1. ANSI/ISA S5.5 Graphic Symbols for Process Displays.

2. ANSI X3.154 (1997) Office Machines and Supplies – Alphanumeric Machines-

Keyboard Arrangement.

C. Electronic Industries Association (EIA):

1. ANSI/TIA/EIA-232-F(2002) Interface Between Data Terminal Equipment and

Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange.

D. Institute of Electrical and Electronics Engineers (IEEE):

1. IEEE Std 142 (2007) IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems.

2. IEEE Std 8802-3 (2021) Local and Metropolitan Area Network: Carrier Sense

Multiple Access with Collision Detection (CSMA/CD) Access Method and

Physical Layer Specifications.

E. National Fire Protection Association (NFPA):

1. NFPA 70 National Electrical Code

1.3 I/O POINT LIST DESCRIPTION (Appendix A – Attached)

A. The I/O point list contains the information to configure the I/O interface hardware and to indicate range conversion or signal functions.

B. Equipment Tag is an alphanumeric character string.

C. SIGNAL is one of the following:

1. “AI” designates an analog input.

Herbert, Rowland & Grubic, Inc. 40 95 34-2 005153.0436

2. “DI” designates an discrete input.

3. “AO” designates an analog output.

4. “DO” designates a momentary, maintained or latched discrete output.

5. “ALRM” designates PLC to PLC communications via registered outputs.

D. RANGE/OFF STATUS is one of the following:

1. “RANGE” designates the range of data for analog or PLC-registered signals.

2. “OFF STATUS” designates the off position information status.

E. UNITS/ON STATUS is one of the following:

1. “UNITS” designates the units of data for analog or PLC-registered signals.

2. “ON STATUS” designates the on position information status.

F. SOURCE is the device, instrument, PLC, etc that the I/O originates from in the unit process.

G. DESTINATION is the device, instrument, PLC, etc that the I/O travels to in the unit process.

H. Remarks indicates additional information (i.e. FUTURE indicates this will be a future point).

1.4 SUBMITTALS

A. Submit in accordance with contract requirements:

1. Specific equipment list, which identifies the manufacturer, part number, model number and quantity.

2. Manufacturer's specification sheet for each proposed item of the system.

3. Letter indicating compliance with the Bid Package with any exceptions documented and submitted with the bid.

B. Shop Drawings: Submittal shall include point to point diagrams of all connected devices, of sufficient detail to adequately communicate that equipment meets system requirements, including:

1. Schematic wiring information for all devices. Wiring information shall include cable type, conductor routings, quantities, and connection details at devices.

1.5 QUALITY ASSURANCE

A. Regulatory Requirements: Installed products shall meet standards of a recognized testing laboratory (UL. or comparable).

Herbert, Rowland & Grubic, Inc. 40 95 34-3 005153.0436

1.6 WARRANTY

A. All components supplied and installed by the Contractor shall be warranted against defects in material and workmanship for a period of at least 12 months, commencing upon the date of acceptance by the Owner. Warranty service shall be provided by a qualified factory-trained service representative. The warranty is in addition to, and not a limitation of, other rights Owner may have under the Contract Documents.

PART 2 – PRODUCTS

2.1 See Table 40 95 34.1 for the I/O List.

PART 3 – EXECUTION

3.1 EXAMINATION

A. Verification of Conditions. Prior to all work of this section, carefully inspect the installed work of all other trades and verify that all such work is complete to the point where this installation may properly commence.

B. Discrepancies. In the event any discrepancies are discovered, immediately notify the

Owner’s Representative in writing. Do not proceed with installation in areas of discrepancy until all such discrepancies have been fully resolved.

3.2 PREPARATION

A. Protection:

1. All equipment and materials shall be packed at the factory to protect each item from damage during shipment and storage.

2. Provide blocking and cushioning materials to prevent damage during shipment.

3. Panel mounted instruments and equipment to be installed inside enclosures, panels, or consoles shall be mounted and assembled at the panel manufacturer’s facility.

B. Surface Preparation. The work shall be carefully laid out in advance. Where cutting, drilling, etc., of floors, walls, ceilings, or other surfaces is necessary, the work shall be carefully done. Any damage to building, piping, or equipment shall be repaired by skilled mechanics of the trades involved, and at no additional cost to the Owner.

3.3 INSTALLATION

A. General. Install equipment, as indicated, with manufacturer’s written instructions, and with recognized industry practices.

Herbert, Rowland & Grubic, Inc. 40 95 34-4 005153.0436

B. The Contractor shall load software required for an operational control system, including databases (for points specified and shown), operational parameters, and system, command, and application programs. The Contractor shall adjust, tune, debug, and commission all software and parameters for controlled systems to assure proper operation in accordance with the sequences of operation and database tables.

C. All assembled control panels must be labeled in accordance with UL508.

D. All panels will utilize terminal blocks for landing input, output and three-phase wiring.

E. Analog, Ethernet and other signals will be separated from 120VAC and higher voltages at the point of field connection.

F. 120VAC signal wiring will be kept separate from all three-phase wiring.

G. On Site Installation:

1. The Contractor is to insure that the control panel is installed per the supplier drawings and instructions. The Contractor will also insure that the installation complies with all acceptable codes and standards.

2. The Contractor will provide all conduit, wire, junction boxes etcetera required for a complete installation.

3. The Contractor will be responsible for terminating all wires on the control panel terminal blocks and at all field equipment.

4. Where AC and DC wires must pass by each other, these intersections will be at a perpendicular angle.

5. All 4-20mA, Ethernet, RS-232, RS-485, DF1, or DH-485 cabling will be routed directly from source to destination. Coils of spare cable are not permitted.

H. On Site Start-Up.

1. The Contractor will demonstrate to the Engineer and to the Owner that all points are being monitored and the system operates as designed and intended.

3.4 FIELD QUALITY CONTROL

A. Inspection. Upon completion of this portion of the work, the Contractor shall provide for the services of a qualified representative of the manufacturer to inspect and approve the installation.

B. Tests. Upon completion of all inspections and prior to acceptance by the Owner, perform the field tests.

Herbert, Rowland & Grubic, Inc. 40 95 34-5 005153.0436

3.5 POINT DATA FIELDS

A. I/O point data fields will be subject to review and modification by the Engineer. The

Contractor and the Engineer shall review, complete and verify this information during implementation. The Owner will assist with this task by obtaining or advising preference for ranges and engineering units. The Engineer will incorporate changes completely into the entire system. The Engineer will document all changes so that a final record version of the I/O list is available to the Owner at start-up.

3.6 DEMONSTRATION

A. General. When all required tests have been performed and prior to final approval, a qualified representative of the supplier shall thoroughly demonstrate to the Owner’s personnel the operation of all items installed under this section.

END OF SECTION

I/O List for SCADA Operating System Skytop WWTP Upgrade

Location Letter Number Ind

INFLUENT SCREEN CONTROL PANEL (10-CP-101)

10 LE 101 A INFLUENT CHANNEL UPSTREAM LEVEL LEVEL AI FEET LE-101 10-CP-101 2

10 LE 102 A INFLUENT CHANNEL DOWNSTREAM LEVEL LEVEL AI FEET LE-102 10-CP-101 2

10 SV 101 A AUGER SPRAY SOLENOID VALVE ON DO OFF ON 10-CP-101 10-SV-101 2

10 SV 102 A PRESS ZONE SOLENOID VALVE ON DO OFF ON 10-CP-101 10-SV-102 2

EQUALIZATION TANK CONTROL PANEL (10-CP-102)

10 LE 103 A EQ TANK LEVEL LEVEL AI FEET LE-103 10-CP-102 2

10 LSH 101 A EQ TANK HIGH LEVEL FLOAT SWITCH HIGH LEVEL DI NORMAL HIGH LEVEL LSH-101 10-CP-102 2

10 LSL 102 A EQ TANK LOW LEVEL FLOAT SWITCH LOW LEVEL DI NORMAL LOW LEVEL LSL-101 10-CP-102 2

10 P 101 A EQ TANK PUMP #1 VFD START DO STOP START 10-CP-102 VFD-P-101 2

10 P 101 B EQ TANK PUMP #1 VFD RUNNING DI STOPPED RUNNING VFD-P-101 10-CP-102 2

10 P 101 C EQ TANK PUMP #1 VFD VFD FAIL DI NORMAL FAIL VFD-P-101 10-CP-102 2

10 P 102 A EQ TANK PUMP #2 VFD START DO STOP START 10-CP-102 VFD-P-102 2

10 P 102 B EQ TANK PUMP #2 VFD RUNNING DI STOPPED RUNNING VFD-P-102 10-CP-102 2

10 P 102 C EQ TANK PUMP #2 VFD VFD FAIL DI NORMAL FAIL VFD-P-102 10-CP-102 2

10 B 101 A EQ TANK BLOWER #1 START DO STOP START 10-CP-102 10-B-101 (STARTER) 2

10 B 101 B EQ TANK BLOWER #1 OVERLOAD DI NORMAL OVERLOAD 10-B-101 (STARTER) 10-CP-102 2

10 B 101 C EQ TANK BLOWER #1 MOTOR OVERTEMP DI NORMAL OVERTEMP 10-B-101 10-CP-102 2

10 B 102 A EQ TANK BLOWER #2 START DO STOP START 10-CP-102 10-B-102 (STARTER) 2

10 B 102 B EQ TANK BLOWER #2 OVERLOAD DI NORMAL OVERLOAD 10-B-102 (STARTER) 10-CP-102 2

10 B 102 C EQ TANK BLOWER #2 MOTOR OVERTEMP DI NORMAL OVERTEMP 10-B-102 10-CP-102 2

RECIRCULATION WET WELL & SECONDARY CLARIFIER CONTROL PANEL (40-CP-400)

20 LE 200 A RECIRULATION WET WELL LEVEL LEVEL AI FEET LE-200 40-CP-400 2

20 LSH 200 A RECIRULATION WET WELL HIGH LEVEL FLOAT SWITCH HIGH LEVEL DI NORMAL HIGH LEVEL LSH-200 40-CP-400 2

20 LSL 200 A RECIRULATION WET WELL LOW LEVEL FLOAT SWITCH LOW LEVEL DI NORMAL LOW LEVEL LSL-200 40-CP-400 2

Remarks Equipment Tag

Description Analog/Digital (True)

Condition Signal Range/Off Status Units/On Status Source Destination

4/27/2026 HRG 1

20 P 201 A RECIRCULATION PUMP #1 VFD START DO STOP START 40-CP-400 VFP-P-201 2

20 P 201 B RECIRCULATION PUMP #1 VFD RUNNING DI STOPPED RUNNING VFP-P-201 40-CP-400 2

20 P 201 C RECIRCULATION PUMP #1 VFD VFD FAIL DI NORMAL FAIL VFP-P-201 40-CP-400 2

20 P 202 A RECIRCULATION PUMP #2 VFD START DO STOP START 40-CP-400 VFP-P-202 2

20 P 202 B RECIRCULATION PUMP #2 VFD RUNNING DI STOPPED RUNNING VFP-P-202 40-CP-400 2

20 P 202 C RECIRCULATION PUMP #2 VFD VFD FAIL DI NORMAL FAIL VFP-P-202 40-CP-400 2

30 P 301 A SECONDARY CLARIFIER PUMP #1 VFD START DO STOP START 40-CP-400 VFP-P-301 2

30 P 301 B SECONDARY CLARIFIER PUMP #1 VFD RUNNING DI STOPPED RUNNING VFP-P-301 40-CP-400 2

30 P 301 C SECONDARY CLARIFIER PUMP #1 VFD VFD FAIL DI NORMAL FAIL VFP-P-301 40-CP-400 2

30 P 302 A SECONDARY CLARIFIER PUMP #2 VFD START DO STOP START 40-CP-400 VFP-P-302 2

30 P 302 B SECONDARY CLARIFIER PUMP #2 VFD RUNNING DI STOPPED RUNNING VFP-P-302 40-CP-400 2

30 P 302 C SECONDARY CLARIFIER PUMP #2 VFD VFD FAIL DI NORMAL FAIL VFP-P-302 40-CP-400 2

30 P 303 A SECONDARY CLARIFIER PUMP #3 VFD START DO STOP START 40-CP-400 VFP-P-303 2

30 P 303 B SECONDARY CLARIFIER PUMP #3 VFD RUNNING DI STOPPED RUNNING VFP-P-303 40-CP-400 2

30 P 303 C SECONDARY CLARIFIER PUMP #3 VFD VFD FAIL DI NORMAL FAIL VFP-P-303 40-CP-400 2

30 P 304 A SECONDARY CLARIFIER PUMP #4 VFD START DO STOP START 40-CP-400 VFP-P-304 2

30 P 304 B SECONDARY CLARIFIER PUMP #4 VFD RUNNING DI STOPPED RUNNING VFP-P-304 40-CP-400 2

30 P 304 C SECONDARY CLARIFIER PUMP #4 VFD VFD FAIL DI NORMAL FAIL VFP-P-304 40-CP-400 2

30 LSH 301 A EQ TANK #1 LOW LEVEL FLOAT SWITCH LOW LEVEL DI NORMAL LOW LEVEL LSH-301 40-CP-400 2

30 LSH 302 A EQ TANK #2 LOW LEVEL FLOAT SWITCH LOW LEVEL DI NORMAL LOW LEVEL LSH-302 40-CP-400 2

40 B 301 A POST AERATION BLOWER #1 START DO STOP START 40-CP-400 40-B-301 (STARTER) 2

40 B 301 B POST AERATION BLOWER #1 OVERLOAD DI NORMAL OVERLOAD 40-B-301 (STARTER) 40-CP-400 2

40 B 301 C POST AERATION BLOWER #1 MOTOR OVERTEMP DI NORMAL OVERTEMP 40-B-301 40-CP-400 2

40 B 302 A POST AERATION BLOWER #2 START DO STOP START 40-CP-400 40-B-302 (STARTER) 2

40 B 302 B POST AERATION BLOWER #2 OVERLOAD DI NORMAL OVERLOAD 40-B-302 (STARTER) 40-CP-400 2

40 B 302 C POST AERATION BLOWER #2 MOTOR OVERTEMP DI NORMAL OVERTEMP 40-B-302 40-CP-400 2

AUTODIALER '40-AD-400'

40 CP 400 A 10-CP-101: SYSTEM FAIL FAIL DI NORMAL FAIL 10-CP-101 40-AD-400 2

40 CP 400 B 10-CP-102: EQ TANK HIGH LEVEL HIGH LEVEL DI NORMAL HIGH LEVEL 10-CP-102 40-AD-400 2

40 CP 400 C 40-CP-400: RECIRCULATION WET WELL HIGH LEVEL HIGH LEVEL DI NORMAL HIGH LEVEL 40-CP-400 40-AD-400 2

40 CP 400 D 40-CP-400: SECONDARY CLARIFIER GENERAL ALARM GENERAL ALARM DI NORMAL ALARM 40-CP-400 40-AD-400 2

40 CP 400 E 40-CP-400: INFLUENT FLOW METER FLOW AI GPM 40-CP-400 40-AD-400 2

40 CP 400 F 40-CP-400: EFLUENT FLOW METER FLOW AI GPM 40-CP-400 40-AD-400 2

40 CP 400 G 40-CP-400: EQ TANK LEVEL LEVEL AI FEET 40-CP-400 40-AD-400 2

4/27/2026 HRG 2

40 ATS 400 A 40-ATS-400: UTILITY POWER FAILURE UTILITY OUTAGE DI NORMAL UTILITY OUTAGE 40-ATS-400 40-AD-400 2

40 ATS 400 B 40-ATS-400: ATS TRANSFER FAIL ATS TRANSFER FAIL DI NORMAL FAIL 40-ATS-400 40-AD-400 2

40 ATS 400 C 40-ATS-400: GENERATOR POWER GENERATOR POWER DI NORMAL ON GENERATOR 40-ATS-400 40-AD-400 2

40 GEN 400 A 40-GEN-400: GENERATOR FAULT GENERATOR FAULT DI NORMAL FAIL 40-GEN-400 40-AD-400 2

REMARKS:

1. ITEMS MARKED WITH A '1' IN THE REMARKS COLUMN, DATA TO BE PLACED IN CONTIGUOUS REGISTERS FOR IMPLEMENTATION ONTO THE SCADA SYSTEM BY THE SYSTEMS INTEGRATOR

2. ITEMS MARKED WITH A '2' IN THE REMARKS COLUMN, HARDWIRED

3. ITEMS MARKED WITH A '3' IN THE REMARKS COLUMN, VFD ETHERNET PARAMETERS

4. ITEMS MARKED WITH A '4' IN THE REMARKS COLUMN, SPARE IO HOLDING REGISTERS

5. ITEMS MARKED WITH A '5' IN THE REMARKS COLUMN, MODBUS COMMUNICATION

4/27/2026 HRG 3

40 95 34 a- IOList Table

File details come from the government source that posted it. Updated .