When you use the "24 V, asymmetrical" signal interface, you have the following possible
combinations for the named functions:
Table 3- 3
Technology Module TM PTO 4 (6ES7553-1AA00-0AB0)
Manual, 12/2016, A5E38896703-AA
Possible combinations for "24 V, asymmetrical" signal interface
DIn.0
DIn.1
—
—
RS
—
—
—
RS
—
—
—
RS
—
RS
MI
RS
MI
RS
MI
—
MI
—
MI
—
MI
DR
—
DR
—
DR
MI
DR
MI
—
DR
—
DR
RS
DR
RS
DR
DIQn.2
Input
Output
—
—
—
—
DR
—
DR
—
—
ED
—
ED
—
—
DR
—
—
ED
—
—
DR
—
—
ED
—
—
—
ED
—
—
—
ED
—
—
—
ED
—
—
—
ED
Connecting
3.1 Pin assignment
DQn.0
DQn.1
P/A signal
D/B signal
25