RPV311
Distributed Multifunction Fault Recorder
Chapter 9: MODBUS
This chapter provides detailed information about the MODBUS feature.
1
Description
Status, analog and digital data are available in MODBUS registers. Access to SCADA
integration is provided over Ethernet interface. Up to 8 simultaneous connections are
allowed at a maximum rate of 60 accesses per second.
1.1
Register Types
Each register reports 16-bit data. Registers are divided into 3 groups:
Register
Type
0
Status
100 to 199
Analog data
200 to 223
Digital channels
1.2
Status
The equipment status is reported by the following registers:
Register
Type
0
General State
Bit 0: General failure
Bit 1: Low primary power voltage
Bit 2: Not used
Bit 3: Not used
Bit 4: IRIG-B synchronization failure
Summary of Contents for RPV311
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