Mitsubishi Electric Q12DCCPU-V User Manual page 66

2
SYSTEM CONFIGURATION
2.1.5
A GOT can be connected in a bus topology using the extension cable connector of a main
or extension base unit in the systems where the C Controller module is used.
This section describes the system configuration for the case where a GOT is connected to
the bus.
For details, refer to the following.
A GOT cannot be connected in a bus topology with the following C Controller modules.
(1) How the C Controller module recognizes the GOT
(2) Maximum number of GOTs
(3) Precautions
2
- 14 2.1 System Configuration
2.1.5 Connecting a GOT in a bus topology
Connecting a GOT in a bus topology
GOT1000 Series Connection Manual (Mitsubishi Products)
• Q12DCCPU-V with a serial number whose first five digits are "12041" or earlier
• Q06CCPU-V(-B)
If a GOT is connected in a bus topology, the C Controller module recognizes the GOT
as an intelligent function module of 16 I/O points.
For this reason, the I/O points must be assigned to the C Controller module in GOT
setup.
(When a GOT is connected in a bus topology, it needs to occupy one extension base
(16 points 10 slots).)
For details of the GOT setup, refer to the following.
GOT1000 Series Connection Manual (Mitsubishi Products)
Up to five GOTs can connected in a bus topology.
• In a bus topology, the GOT must be connected to the last base unit. A GOT
cannot be connected between base units.
Figure 2.11 Precautions for connecting a GOT in a bus topology
• Select an appropriate extension cable for connecting the GOT to the bus so that
the total extension cable length is 13.2 m at maximum.
• A bus extension connector box (A9GT-QCNB) must be used if the first GOT is to
be placed at a distance of more than 13.2 meters away.
A9GT-QCNB type Bus extension connector box User's Manual
• Configure the bus connection settings (extension base number and slot number
settings) on the GOT before activating the C Controller module and GOT.
• Power on the C Controller module and GOT in any of the following sequences.
• Power on the C Controller module and GOT at the same time.
• Power on the C Controller module and then GOT.
• Only the GOT 1000 series can be used.