Due to supply issues with the S7-1214C PLC, referenced in the supplied curriculum materials, it has been necessary to ship alternate S7-1212C PLCs with some orders. These units have been supplied with an additional digital output (DO) module which needs to be attached to the PLC to increase the number of available digital outputs. 

To accommodate the use of this alternate PLC please consider the following changes.


Wiring configuration


Original : Green Lamp (LG) > DQa 6

1212C : Green Lamp (LG) > DQa 4 of additional DO module


PLC Tag Table


Original : Green Lamp (LG) Address = %Q0.6

1212C : Green Lamp (LG) Address = %Q8.4