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3.4.1
Connecting ESB Bus Cable
How to install ESB bus coupler module to the safety control unit, how to connect safety node
unit, and how to connect the optical ESB bus repeater module are explained in this section.
n
ESB Bus
The communication bus to link the safety control unit and the safety node units is referred as
ESB bus.
The ESB bus coupler module on the safety control unit is at one end of the ESB bus and it
has a branch connector with built-in ESB bus terminator.
Connect an ESB bus interface module that has a branch connector with built-in ESB bus ter-
minator to the safety node unit at the other end of the ESB bus. Connect an ESB bus inter-
face module that has a branch connector without built-in ESB bus branch connector to the
safety node units in between the two ends of ESB bus. The following figure shows an exam-
ple of an ESB bus connection.
<3.4 Connecting ESB Bus Cable >
3-20
IM 32Q06C10-31E
4th Edition : Jan.30,2015-00