RME2-AI-IA3 Analog Variables Acquisition Module – User’s Manual
Exemys
www.exemys.com
Rev. 1
18
2.
OPERATION MODES
RME2-AI-IA3 acquisition module allows up to eight analog sensors to be remotely monitored
and supervised through Ethernet interface in different protocols.
2.1.
Modbus TCP
The acquired values, in their different formats, can be read in Modbus TCP registers.
Holding Registers presented below are read only.
Modbus TCP Register
Description
40001 a 40008
Analog Value (x 100).
40009 a 40016
Status (Shows the status or each input).
0: Normal.
1: Low Alarm.
2: High Alarm.
40017 a 40024
Scaled value.
40025 a 40032
Counts values of the Analog /Digital Converter (0 for 0V and
4000for10V /800 for 4mA and 4000 for 20mA).
40201 a 40208
Input type.
0: Current 4-20mA.
1: Voltage 0-10V.
40209 a 40216
Average.
1, 5, 10, 20, 50, 100 ->Number of samples to be averaged.
40217a40224
Abscissa Zero for scaling(X0) (variable value between 0 and 4000)
40225 a 40232
Ordinate Zero for scaling(Y0) (variable value between - 32.767
and 32.767)
40233 a 40240
Abscissa Zero for scaling(X1) (variable value between 0 and 400)
40241 a 40248
Ordinate one for scaling(Y1) (variable value between - 32.767 and
32.767)
40249 a 40256
Alarm enabling
0: Both alarms disabled
1: Low alarm enabled.
2: High alarm enabled.
3: Both alarms enabled
40257 a 40264
Alarm value for low
(variable value between - 32.767 and 32.767).
40265 a 40272
Alarm value for high
(variable value between - 32.767 and 32.767).
