Varec 2920, Installation And Operation Manual, Page: 169 / 194

MODBUSAppendix A — MODBUS Implementation
Varec, Inc. 159
5 Bit Field AlmStat (Tank Data > AlmStat)
Bit Usage
0 CRIT LO LEVEL
1 ADV LO LEVEL
2 ADV HI LEVEL
3 CRIT HI LEVEL
4 CRIT LO TEMP
5 ADV LO TEMP
6 ADV HI TEMP
7 CRIT HI TEMP
8 HW IN 1
9 HW IN 2
10 HW IN 3 *
11 NW IN 4 *
12 – 15 RESERVED
* when optional AC Power module is installed
6 Bit Field DiagStat (Tank Data > DiagStat)
Bit Usage
0 BAD LEVEL
1 BAD TEMP
2 – 15 RESERVED
7 Bit Field CmdsBit Usage
0 – 15 RESERVED
8 Integer FDISK (Encoder Data > FDisk)
9 Integer IDISK (Encoder Data > IDisk)
10 Scaled Crit Low Level Setpoint (MODBUS > CritLowLevel)
11 Scaled Adv Low Level Setpoint (MODBUS > AdvLowLevel)
12 Scaled Adv High Level Setpoint (MODBUS > AdvHighLevel)
13 Scaled Crit High Level Setpoint (MODBUS > CritHighLevel)
14 Scaled Level Deadband (MODBUS > LDeadband)
15 Scaled Crit Low Temp Setpoint (MODBUS > CritLowTemp)
16 Scaled Adv Low Temp Setpoint (MODBUS > AdvLowTemp)
17 Scaled Adv High Temp Setpoint (MODBUS > AdvHighTemp)
18 Scaled Crit High Temp Setpoint (MODBUS > CritHighTemp)
19 Scaled Temp Deadband (MODBUS > TDeadband)
Register Number Type Description