Pinout - X11 Lower User
14-pin connector, Orange, Type-A coding key. Odd pins on the upper row, even pins on the lower row, as numbered in the Siemens S7-1200 G2 system manual (Section A.7.3). 12 of 14 positions are wired.
| Pin | Signal | Wire color |
|---|---|---|
| 1 | L+ | blue |
| 2 | M | white/blue |
| 3 | not populated | |
| 4 | not populated | |
| 5 | DQ b.0 | blue |
| 6 | DQ b.4 | blue |
| 7 | DQ b.1 | blue |
| 8 | DQ b.5 | blue |
| 9 | DQ b.2 | blue |
| 10 | DQ b.6 | blue |
| 11 | DQ b.3 | blue |
| 12 | DQ b.7 | blue |
| 13 | 2L | blue |
| 14 | 2L | blue |
Wire colors per NFPA 79 / UL 508A: black AC line, white AC neutral, green/yellow ground, blue DC, white/blue DC common, red relay contacts (assumed AC-switched - tell us if they switch DC).
Part number system
TPC-6ES7222-5HH50-0XB0-X11-1M-20AWG
- TPC - Think-PLC pre-fabricated connector harness
- 6ES7222-5HH50-0XB0 - Siemens order number of the SM1222 DQ 16xRelay
- X11 - Lower User
- 1M / 2M / 3M - lead length in meters
- 18AWG / 20AWG - conductor size
What is in the bag
- G2 push-in connector, 14 positions, orange, Type-A keyed
- 12 x UL 1015 MTW conductors, chosen length and gauge
- Insulated ferrules both ends
- Printed signal-name sleeves both ends
- Spiral-wrapped bundle, 100% continuity tested
- Bag label with the full part number
Siemens wiring diagram
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S7-1200 G2 Wiring Harness - SM1222 DQ 16xRelay - X11 Lower User (14-pin)
Plug in, land the ferrules, done. This harness fits the X11 terminal of the SM1222 DQ 16xRelay and no other: the G2 connector matches the Siemens connector color and coding key. Every populated position carries a UL 1015 MTW conductor with an insulated ferrule and a printed signal-name sleeve at both ends.
Part number: TPC-6ES7222-5HH50-0XB0-X11-length-gauge. Built to order in Winston-Salem, ships in 3-5 business days. Configure a whole rack at once with the S7-1200 G2 Harness Configurator.