OPERATION MANUAL CompoBus/S

System Configuration Using Water-resistant Terminals Section 2-4
2-4 System Configuration Using Water-resistant Terminals
Insulated
power
supply line
Use 4-conductor VCTF cable for communications when Water-resistant Terminals
are used.
Wire the cables as shown below regardless of whether the system has a main
line distinguished from the branch lines or not.
CompoBus/S Master Unit
Connector
assembly
(female)
4-conductor
VCTF cable
Communications
power supply
I/O power supply
T-joint
Connector
assembly
(male)
Connector
assembly
(male)
Insulated
communications
line
(See note.)
4-conductor VCTF cable (0.75 mm 2 conductors)
VCTF cable
Connector
assembly
(female)
Connector
assembly
(female)
Watertight
Terminals
Connector
assembly
(female)
Connector
assembly
(female)
T-joint
Connector
assembly
(female)
(See
note.)
Connector (See note.)
assembly
(male)
(See note.)
T-joint
Connector as- T-joint
sembly (male)
Connector
assembly
(female)
Connector
assembly
(male)
Connector
assembly
(male)
Note Use VCTF cable for the external power supply. OMRON’s Connectors
with Cables can be used as well.
To connect Slaves other than the Water-resistant Terminals, use communications
cable with no connectors and wire the cable with crimp terminals. If the
cable requires water resistance, use a commercially available terminal block
instead of T-joints.
Note When using 4-conductor VCTF Connector with Cable Assemblies, use one of
the following combinations of cable conductor colors and signals for stable
communications.
2-5 I/O Response Time Characteristics
Connector
assembly
(female)
Connector
assembly
(female)
Shield
terminator (male)
(See
note.)
I/O device
This section explains the minimum and maximum I/O response times of the
CompoBus/S System. Use this section for reference when planning operations
that require precise I/O timing.
The I/O response time is the time it takes from the reception of an input signal
at a CompoBus/S Input Slave to the output of the corresponding output signal
at a CompoBus/S Output Slave.
The information provided here, however, is only for when a Communications
Unit is used as the Master Unit. For details on using the SRM1 Master Control
Unit and CPM2C-S Series, refer to the CompoBus/S SRM1 Master Control
Units Operation Manual (W318) or CPM2C-S PLC Operation Manual (W377).
T-joint
Connector assembly
(male)
Connector
assembly
(male)
Conductor
Signal
color Pattern 1 Pattern 2 Pattern 3 Pattern 4
White BD H BS + BS – BD L
Red BS + BS – BD L BD H
Green BS – BD L BD H BS +
Black BD L BD H BS + BS –
41