PROFIBUS-DP 5.4
Communications 5-231
2624 Axis 0 plot type
2625 Axis 1 plot type
2626 Axis 2 plot type
2627 Axis 3 plot type
2628 Axis 4 plot type
2629 Axis 5 plot type
2630 Axis 6 plot type
2631 Axis 7 plot type
Digital (Discrete) I/O Registers:
These registers indicate the current state of the digital inputs and outputs. These registers may
only be read; writes will be ignored, as this product does not support forcing inputs or outputs.
Because the different PLCs label bit numbers differently, the following chart is provided to show
the mapping between the devices:
MSB
#
15 14
13
12
11
10
9
8
7
Bradley
bit #
bit #
bit #
1 2 3 4 5 6 7
8
9
The bit numbers listed in the table below are in RMC format (0 is LSB, 15 is MSB):
Address
Register Description
CPU Digital Inputs 0 and 1 in LSBs of low
byte, Outputs 0 and 1 in LSBs of high byte
2635 Sensor Digital I/O Inputs 0-15
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