SMC Networks EX12 SCS Series Operation Manual page 23

○How to replace the EX124 Series SI unit
Removal
1. Remove the cover from the SI unit, by removing the screws (4 x M4) which hold the cover.
2. Disconnect the wiring from the SI unit, and remove the SI unit from the manifold.
Disconnect the wiring to the SI unit.
Remove the screws (4 x M4) which secure the SI unit to the manifold.
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No.EX※※-OMC0002-C