WAGO-I/O-SYSTEM 750
Commissioning
49
750-464 2/4 AI RTD configurable
Manual
Version 1.0.1
Table 38: Parameter channel address 16 ... 142
Parameter channel address
Register
Channel 1
Channel 2
Channel 3
Channel 4
32
16
56
96
136
33
17
57
97
137
34
18
58
98
138
35
19
59
99
139
36
20
60
100
140
39
21
61
101
141
40
22
62
102
142
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6.2.4
Parameter transmission process
Parameter data are exchanged between application and bus modules by means of
the Request-Response process. The application initiates an order with the help of
the toggle bit (TGL_MS != TGL_SM). The communications control register
(R57) then polls the module until the latter acknowledges the execution of the
order (TGL_SM == TGL_MS).
The possible orders to the parameterizing interface of the bus module are listed in
the following.
6.2.4.1
Determining the maximum bus module parameter data (system
parameters)
Request (Application)
Table 39: Determining the maximum bus module parameter data (Request)
Parameter
Value
Meaning
TGL_MS
!= TGL_SM
Initiate order
PRM_RW
= FALSE
Read access
A0 ... A7
255
Address of parameter data length
Response (I/O module)
Table 40: Determining the maximum bus module parameter data (Response)
Parameter
Value
Meaning
TGL_SM
== TGL_MS
Order executed
A0 ... A7
255
Address of parameter data length mirrored
PRM0 ... PRM15 N
Number of parameters in the address range
0 ... (n-1), n
∈
{N < 250}
6.2.4.2
Restoring factory settings (system parameters)
Request (Application)
