Technical specifications
A.3 Fail-Safe signal module (SM) technical specifications
S7-1200 Functional Safety Manual
176 Manual, 02/2015, A5E03470344-AA
Table A- 52 Connector pin locations for SM 1226 F-DI 16 x 24 VDC (6ES7 226-6BA32-0XB0)
2 M / 24 VDC No connection
3 Vs1 / 24VDC Sensor Supply Out-
Vs2 / 24VDC Sensor Supply Out-