Product Description XI/ON - Eaton Automation

XI/ON: Gateways for Modbus TCP 6 Application example: Modbus TCP
Table 56:
Module
parameters
XN-2AI-I
(0/4...20MA)
A defaultsetting
Figure 60:
Parametrization of
XN-2AI-I
(0/4...20MA)
A register-no.
B register-value
Example A:
Module 0:
The parameter of the module (1. slot in the station) can be accessed
via registers 0×B000 to 0×B01F.
1 Changing the measurement range for channel 0 from
"0 to 20 mA" to "4 to 20 mA".
The module shows the following parameter data structure
(1 byte of parameters per channel):
Byte Bit Parameter Value
0/1 0 Current mode 0 = 0...20 mA A
1 Measurement
value representation
1 = 4...20 mA
0 = Integer (15bit + sign) A
1 = 12bit (left justified)
2 Diagnosis 0 = release A
1 = block
3 Channel 0 = activate A
1 = deactivate
Thus, for setting the current mode to "4 to 20 mA", register 0×B000,
byte 0, bit 0 has to be set.
Function Code 06, „Write Single Register“:
A B
M001973-01, 07/2007 139