Mitsubishi MELSEC-Q Series User Manual page 64

2
SYSTEM CONFIGURATION
(7) Connection with external devices
2
- 20 2.3 Applicable Devices
(a) RS-232 device
Take the following precautions when connecting an RS-232 device to the RS-232
interface of the C Controller module.
• When the C Controller module or the target device connected to the C
Controller module is powered on or off, a receive error may occur on the
target device side.
• While data is being sent from the C Controller module to the target device,
starting up the target device side system causes a receive error on the target
device.
• If an error has occurred on the target device, deal with that error according to
the instruction manual of the target device.
(b) Ethernet device
Take the following precautions when connecting an Ethernet device to the
10BASE-T/100BASE-TX interface of the C Controller module.
1) When C Controller module has been replaced or IP address has been
changed
Reset the Ethernet device.
(If the Ethernet device holds the Ethernet address (MAC address) of the
communication target, C Controller module replacement or IP address change
may disable continued communication since it changes the Ethernet address
(MAC address).)
Similarly, when the Ethernet device has been replaced, restart the C Controller
module.
2) When error has occurred on Ethernet device
Deal with the error according to the instruction manual of the Ethernet device.