The digital electronics modules are installed on terminal modules which must be ordered separately.
TM-IM/EM60 terminal modules for one interface module and one watchdog, reserve or electronics module (for versions, see section Interface module)
TM?EM/EM60 terminal modules with two slots for watchdog module, reserve module or electronics module (except 2 DO relay), with blue screw-type or spring-loaded terminals for hazardous environments or with black screw-type terminals for non-hazardous environments
TM?RM/RM 60 terminal modules with two slots for relay or reserve modules
The digital electronics module 2 DO Relays must be plugged onto the terminal module TM-RM/RM 60S (screw-type connection system). All other digital electronics modules are plugged as planned onto terminal modules using screw-type systems (TM?EM/EM60S) or spring-loaded systems (TM?EM/EM60C).
Using a spare module plugged onto a terminal module TM?EM/EM60S, TM?EM/EM60C or TM?RM/RM 60S, you can reserve a slot for a digital electronics module or close a gap resulting from the design. The spare module can be simply replaced by the envisaged electronics module at a later point in time.
The mechanical coding of the terminal module which is carried out when an electronics module is plugged on for the first time prevents the connection of incorrect replacement modules.
Hot swapping of individual modules is possible under hazardous conditions.
The process signals are connected to the terminals of the terminal modules assigned according to the plan, using either conventional screw-type or spring-loaded systems (conductor cross-sections 0.14 mm? to max. 2.5 mm?) depending on the type of module.