Modbus Read, Write and Override Parameters plus Exception Codes
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10.7.8 Algorithm
Table 10-17 lists all the register addresses and ranges or selections for the function
parameters in Set-up Group Algorithm.
Table 10-17 Set-up Group – Algorithm
Parameter
Register
Address
Data
Type
Access Data Range or
Enumerated Selection
Description ID Hex Decimal
Control Algorithm
Selection
(Selection here
will affect ID code
160 in Output
Algorithms.)
128 0080 128 INT R/W 0 = ON/OFF
1 = PID-A
2 = PID-B
3 = PD-A with Manual
Reset
4 = Three Position Step
5 = Disable
Control Algorithm
Selection Loop2
128 0180 384 INT R/W 0 = unused
1 = PID-A
2 = PID-B
3 = PD with Manual Reset
PID Loops 168 01A8 424 INT R/W 0 = Loop 1 Only
1 = Loop 2 Enabled
2 = Loop 1 & 2 are
cascaded with Loop 2 as
primary (No Output) Loop
1 is secondary
Output Override 136 0188 392 INT R/W 0 = Disabled
1 = Hi Select
2 = Lo Select
Timer 216 00D8 216 INT R/W 0 = Disable
1 = Enable
Period 99 0063 099 FP R/W 00.00 TO 99.59
Start (Initiation) 217 00D9 217 INT R/W 0 = Key (Run/Hold Key)
1 = Alarm 2
Time Display
(Selection)
218 00DA 218 INT R/W 0 = Time Remaining
1 = Elapsed Time
Timer Reset 214 00D6 214 INT R/W 0 = Key (Run/Hold Key)
1 = AL1 (Alarm 1 or Key)
Timer Increment 215 00D7 215 INT R/W 0 = Minutes (Counts
hr/minute)
1 = Sec (Counts min/sec)