Operation
2
017-
03
111
Figure 8.6
Measurement
window
The MODBUS mapping of the device with long tag
40000003410027
looks as follows.
Excerpt from MODBUS Mapping Table for 40000003410027
Figure 8.7
MODBUS readout of register 30217 ... 30226
The MODBUS readout of registers 30217 ... 30226 results
?????
respectively
NaN
because
no field device is available and therefore no values are available.
Figure 8.8
MODBUS readout of register 30227 ... 30228
The MODBUS status information in register 30227 returns
0000000000000101
. This
indicates that the cache for command 3 is empty (as there is no device). See chapter 12.2
Register
Endregister
Long Tag
IO-Card
Channel
Value
...
217
218
40000003410
027
13
0
Loop Current
219
220
40000003410
027
13
0
PV
221
222
40000003410
027
13
0
SV
223
224
40000003410
027
13
0
TV
225
226
40000003410
027
13
0
QV
227
227
40000003410
027
13
0
MODBUS
Status
228
228
40000003410
027
13
0
Device Status
...
Loop Current and Variables for 40000003410027
Status Information for 40000003410027