Armstrong AGE4, Installation And Operating Instructions Manual

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5.7.3 REGISTER OVERVIEW
AGE4 Modbus RTU registers are grouped in the following register blocks:
Start
address
Register block Readable/Writeable Description
001 BMS module configuration R/W Configuration of the BMS module
021 BMS module status R Status registers of BMS module
101 AGE4 Pump control R/W Pump control registers
201 AGE4 Pump status R Status data of AGE4 pump
301 AGE4 Pump data R Measured data from AGE4 pump
All addresses contain 16 bit (one Word) registers. Some are bit interpreted while others are combined
for a 32 bit value.
NOTE: All register addresses are 1-based. Address 001 is thus transmitted over bus as 0x0000.
5.7.4 CONTROL REGISTERS
Registers in this block are read with either function codes 0x03 or 0x04. They can be written as holding
registers with function codes 0x06 and 0x10.
NOTE: All values in this block are stored in nonvolatile memory immediately after write.
NOTE: See section “4.3 Module mode selection” and use Mode 8 or 9 to restore default settings if you
cannot access the controller after writing to these registers.