GUILCOR AR006708, Instruction Manual

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19
6.1.3. Modbus registers of the regulator
Variable Unit
Address
[hex]
X
Address
[dec]
X
Format Size Status
measured temperature [°C/°F]* 0x0031 49 Int*10 BIN16 R
measured relative humidity [%] 0x0032 50 Int*10 BIN16 R
computed value* 0x0033 51 Int*10 BIN16 R
CO
2
concentration displayed on LCD ppm 0x0034 52 Int BIN16 R
Relay1 status [0/1] (Alarm 1) [-] 0x003B 59 Int BIN16 R
Relay2 status [0/1](Alarm 2) [-] 0x003C 60 Int BIN16 R
CO
2
concentration „FAST“ mode ppm 0x0054 84 Int BIN16 R
CO
2
concentration „SLOW“ mode ppm 0x0055 85 Int BIN16 R
status word (described below) [-] 0x0007 7 Int BIN16 R
device serial number Hi [-] 0x1035 4149 BCD BIN16 R
device serial number Lo [-] 0x1036 4150 BCD BIN16 R
firmware version Hi [-] 0x3001 12289 BCD BIN16 R
firmware version Lo [-] 0x3002 12290 BCD BIN16 R
device address [-] 0x2001 8193 Int BIN16 R/W**
communication speed code [-] 0x2002 8194 Int BIN16 R/W**
Legend:

* depends on device setting (by User’s software)

Int*10 register is in format integer *10 (likewise *100, *1000)

R register is designed only for deading

W** register is designed for writing, but direct write is not available, for details see
description of communication protocols

x at transmit are register addresses indexed from zero - „zero based addressing“.
For example „measured temperature“ with Modbus address 0x31 is physically sent
along data bus as value 0x30. You make sure of correct addressing with the aid of
Master device documentation or experimentally (e.g. for „measured temperature“ try
to use address 0x31 or 0x30).

Status word: 16b value return, bite description:
Bit0 0/1 jumper open/closed
Bit1 - unused
Bit2 0 always 0
Bit3 0/1 Relay1 open/closed
Bit4 0/1 Relay2 open/closed
Bit5 0/1 internal acoustic alarm status
Bit6 to 15 - unused
Note: In case there is a need for reading of measured values from the device with higher resolution
than one decimal, measured values in device are stored also in „Float“ format, which is not directly
compatible with IEEE754.
6.1.4. Far controlling of output relays status
There is possible to control output relay status (open/close) with using of Modbus communication
protocol. To this function enable, there is necessary to assign one of following options to relay: