Appendix A - I/O Signal Descriptions; Heat Zone States; Status Indication Bit Tables - Graco Therm-O-Flow 25C994 Instructions Manual

Appendix A - I/O Signal Descriptions

This section provides details about the CGM automation input and output signals.

Heat Zone States

The signal is 0 on power up. The following values of this signal correspond to the various heat zone states. Each
zone is bit packed into 3 bits for each zone designation in input instances 29-31 and 60-62 of the map.
Number Binary #
0 000
1 001
2 010
3 011
4 100
5 101

Status Indication Bit Tables

The following tables reflect bit-packed data, which corresponds to the status words located at input instances 65 and
66.
Status Word 1 Indication Bits
Bit Hex
Number Equivalent
0 0x0001
1 0x0002
2 0x0004
3 0x0008
4 0x0010
5 0x0020
6 0x0040
7 0x0080
8 0x0100
9 0x0200
10 0x0400
11 0x0800
12 0x1000
13 0x2000
14-15 ------
3A5186B
Heat Zone State
Zone Not Installed
OFF
Warm Up
Heat Soak State
At Temperature
Setback Mode
Binary Number
0000 0000 0000 0001
0000 0000 0000 0010
0000 0000 0000 0100
0000 0000 0000 1000
0000 0000 0001 0000
0000 0000 0010 0000
0000 0000 0100 0000
0000 0000 1000 0000
0000 0001 0000 0000
0000 0010 0000 0000
0000 0100 0000 0000
0000 1000 0000 0000
0001 0000 0000 0000
0010 0000 0000 0000
------
System is ON
Active System is Secondary (B) System
Heat is Turned ON for Primary (A) System
Heat is Turned ON for Secondary (B) System
Setpoint Indications are for Secondary (B) System
Setback Setpoint Indications are for Secondary (B) System
Material Tracking is ON or Active
Pump Priming is Active for Primary (A) System
Pump Priming is Active for Secondary (B) System
Pump is ON for Primary (A) System
Pump is ON for Secondary (B) System
Setback Mode is Active for Primary (A) System
Setback Mode is Active for Secondary (B) System
Data Exchange Interface is Active or in Transition
Reserved for Future Use
Appendix A - I/O Signal Descriptions
Description
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