Siemens SIMATIC S7-1200

Technical specifications
A.3 Fail-Safe signal module (SM) technical specifications
S7-1200 Functional Safety Manual
184 Manual, 02/2015, A5E03470344-AA
A.3.4
SM 1226 F-DQ 2 x Relay
A.3.4.1
Properties
Article number
6ES7 226-6RA32-0XB0
Properties
The SM 1226 F-DQ 2 x Relay has the following features:
● Two relay outputs (each output switches two circuits)
● 5 A output current
● Rated load voltage 24 VDC or 24 VAC to 230 VAC
● Module fault display (DIAG; green and red LED)
● Status display for each output (green LED)
● Fault display for each output (red LED)
● Safety class SIL3 attainable
● Assignable diagnostics
● Refer to "Fault diagnostics" (Page 119) for a description of LED and diagnostic message
functions.
A.3.4.2
User data space
The SM 1226 F-DQ 2 x Relay user data space is 2 process value output bits followed by 2
quality bits.
This is the bit structure for an F-RLY module configured with input start address 8:
Terminal
Process value
Quality bit
F-DQ a.0
Q8.0
I8.0
F-DQ a.1
Q8.1
I8.1