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Address
Register
(hex)
(dec)
019E
40415
FGR Purge Preset Position
019F
40416
Air Lightoff Preset Position
01A0
40417
Fuel Lightoff Preset Position
01A1
40418
Registers 40413-40417 are current
01A2
40419
Lightoff Preset FGR
01A3
40420
Air Standby Position
01A4
40421
Fuel Standby Position
01A5
40422
FGR Standby Position
01A6
40423
Non-Selected Fuel Standby Position
01A7
40424
Registers 40419-40423 are current
01A8
40425
Number of Profile Points
Major Software Revision
01A9
40426
Minor Software Revision
Software Version Code
01AA
40427
R7999 ControlBus™ revision
R7999 Compatibility Code for ZM7999
01AB
40428
R7999 Software Build Code
01AC
40429
Abort Code
Abort Code Count
01AD
40430
Registers 40425-40429 are current
01AE
40431
Low Fire Hold Configuration
Configuration Options
01AF
40432
Min Auxiliary Temperature
01B0
40433
Max Auxiliary Temperature
01B1
40434
Auxiliary Release Temperature Counts
01B2
40435
Auxiliary Enforce Temperature Counts
01B3
40436
Registers 40431-40435 are current
01B4-
40437-
Running Time in Hours
01B5
40438
01B6
40439
Running Time in Minutes
Unused
Table 13. ModBus™ R7999 Register Assignments. (Continued)
Parameter Name
Format
U16
0-4095
U16
0-4095
U16
0-4095
U16
0-1
U16
0-4095
U16
0-4095
U16
0-4095
U16
0-4095
U16
0-4095
U16
0-1
U16H
0-23
U16L
U16H
U16L
U16H
Bits 0-3 FlameNet™ and R7999 display.
U16L
U16
0x0000-0xFFFF
U16H
0-255
U16L
0-255
U16
0-1
U16H
0—Disabled (Not configured)
1—Low Fire Hold (Position the FGR, Air and Fuel actuators at the
Light Off Position).
2—Modulate with FGR closed (FGR closed, Air and fuel
modulating).
3—Low Fire Hold with FGR closed (FGR closed, Air and Fuel at
Light Off Position).
U16L
If a Bit = 1, then the option is configured.
Bit 0: FGR is set to follow the profile (curve) during purge.
Bit 1: Maximum Firing rate is controlled by the Manual Firing Rate
input.
Bits 2-15: Unused.
U16
0x0000-0xFFFF. Subtract 40 to get the actual value.
U16
0x0000-0xFFFF. Subtract 40 to get the actual value.
U16
Release the Low Fire Hold condition and allow Modulation after the
Aux. temperature reaches this temperature or higher. See Note 5.
U16
Initiate a Hold condition when the Aux. temperature reaches this
temperature or lower. See Note 5.
U16
0-1
U32
U16H
U16L
9
S7810M MODBUS™ MODULE
Notes
65-0249—4
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