Connectable components
9.3 PP 72/48D 2/2A PN
NCU 7x0.3 PN
Manual, 09/2011, 6FC5397-1EP40-0BA0
139
Assigning parameters to the analog inputs
The analog inputs (AI) can be operated in the following operating modes:
Operating mode 1st channel Bit 1 Bit 0
No operating mode 0 0
Voltage measurement 0 1
Current measurement 1 0
Temperature measurement (Pt100) 1 1
Operating mode 2nd channel Bit 3 Bit 2
No operating mode 0 0
Voltage measurement 0 1
Current measurement 1 0
Temperature measurement (Pt100) 1 1
Assigning parameters to the analog outputs
The analog outputs (AO) can be operated in the following operating modes:
Operating mode 3rd channel Bit 5 Bit 4
No operating mode 0 0
Voltage output 0 1
Current output 1 0
Impermissible operating mode 1 1
Operating mode 4th channel Bit 7 Bit 6
No operating mode 0 0
Voltage output 0 1
Current output 1 0
Impermissible operating mode 1 1
Checkback signal of the operating modes
The set operating modes are saved in the input image in Status Byte 0. This value must be
compared with Control Byte 0 in the output image. If these are different, an error has
occurred, e. g. in the case of overvoltage in the "Temperature measurement" operating
mode, see Diagnostics via input image (Page 145).
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