2
017-
06
42
Parameterization and Operation
4.6.1
Transducer Blocks Interacting with DI or MDI Function Blocks
For the discrete inputs, the hardware channels can be linked to function blocks in different
ways.
Using 12 Individual DI Function Blocks
Each discrete input is linked to the independent DI function blocks 5
…
17.
For group 1 hardware inputs, the transducer block channels 301
…
304 are used.
For group 2 hardware inputs, the channels 201
…
208 are used.
Using 2 MDI Function Blocks
Group 1 hardware inputs are linked to an MDI by using channel number 300.
Group 2 hardware inputs are linked to an MDI using channel number 200.
Using 2 DI Function Blocks
If required, you can use this option to increase the update time performance. Use the sensor
inputs with 2 DI function blocks to read the input states of the 2 hardware input groups.
Group 1 sensor inputs are linked to a DI by using channel number 305.
Group 2 sensor inputs are linked to a DI using channel number 5.
The input values are assigned to the respective bits of the FIELD_VAL_D parameter value of
the transducer blocks according to the following tables:
Group 1 Hardware Inputs
Transducer Block
Transducer Channel
Hardware Input
1
301
1
201
2
202
3
2
302
4
203
5
204
6
3
303
7
205
8
206
9
4
304
10
207
11
208
12
Hardware Group
Transducer Channel
Hardware Input
1
300
1,4,7,10
2
200
2,3,5,6,8,9,11,12
Bit
Description
0
Sensor value hardware channel 1
1
Sensor value hardware channel 4
2
Sensor value hardware channel 7