Panel fit and routing notes
The 6ES7223-1PL22-0XA8: Depth 62 mm, width 137.5 mm, height 80 mm. Typical S7-200 footprint — clips onto the DIN rail beside the CPU. Power dissipation 6 W, so no forced air needed in a standard cabinet. Relay outputs share a common group; plan external short-circuit protection (none onboard).
