Micromod RetroPAK: SLC Installation Manual - Manual (Page 19)

SLC RetroPAK Controller
MODULAR I/O CONNECTIONS
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MODULAR I/O CONNECTIONS
Figure 4-1. Terminal Identifications for Modular I/O
4.1 GENERAL
Read this section thoroughly before making any connections to modules. Installation
personnel should be qualified technicians. Observe all electrical code requirements and
safety standards applicable to these wiring procedures.
Specific instructions and connection diagrams for the various input and output modules are
provided in Sections 4.3 and 4.4. A listing of the applicable electrical specifications is
included with each diagram.
4.2 MODULAR I/O CONNECTION GUIDELINES
The wiring connections described in this section are made with the controller installed in its
operating location and with the power off. All connection terminals are located under a cover
on the back of the instrument housing. Figure 4-1 shows the modular connection terminals
with the cover removed.
The recommended procedure for making, connections to I/O modules is as follows:
1. The diagrams for single width modules show connections to a sample location (usually
location 1). The terminal numbers for the actual location being used must be determined
by matching pin numbers 1 and 2 in each diagram to the terminal numbers for the
selected location as shown in Figure 4-1.
2. The spacing of module locations on the carrier board divides locations 1 through 10 into
pairs allowing double wide modules to occupy only five different locations. The terminal
numbers applicable to each dual location are shown on the connection diagrams for
double wide modules.