Analog Modules
4-91
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Channel groups
The channels of the SM 331; AI 8 x16 bits are arranged in groups of two inputs
each. You must assign the same parameters to both the inputs in a group. The
interrupt limits are the exception here.
Table 4-55 shows which channels of the isolated analog input module SM 331;
AI 8 x 16 bits are configured as a channel group. To set the parameters by means
of SFC in the user program, you need the numbers of the channel groups. Detailed
information on this can be found in Appendix A.
Table 4-55 Assignment of the channels of the isolated analog input module SM 331;
AI 8 x 16 bits to channel groups
Channels ...
... form one channel group each
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Operating states
The following modes are available for the isolated analog input module SM 331;
AI 8 x 16 bits:
• 8 channels
• 4 channels
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