Mitsubishi Electric MELIPC MI5A1P User Manual page 65

Table of Contents

Advertisement

Considerations when configuring the CC-Link IE Field Network
This section presents the considerations when configuring the CC-Link IE Field Network.
■Adding and removing slave stations
Add and remove slave stations one by one. If two or more stations are added or removed, all stations reconnect to the
network, so all stations may have errors momentarily. Additionally, if further slave stations are added when 120 slave stations
are connected, the 121st and subsequent stations do not perform baton passes or data links, while the other stations continue
baton passes and data links. When 121 or more stations are connected, even disconnected stations that are reconnected
may not start data links.
• Confirmation as to whether 121 or more slave stations (including sub master stations) is possible in
'Connected device number excess occurrence status' (SB0099). The number of connected stations
detected using 'Connected device number excess occurrence status' (SB0099) is the total of currently
connected slave stations and previously connected slave stations (disconnected stations).
• By updating the CC-Link IE Field Network diagnosis network configuration, it is possible to reset the number
of stations that were connected in the past. (MELIPC MI5000 Series User's Manual (Application))
• Updating the network configuration carries out reconnection processing for all stations on the network,
therefore this results in a momentary data link error for all stations, with output OFF for connected slave
stations. Configure in order to save output as necessary. ( Page 63 Output retention at data link
abnormality)
■If cables are removed then reinserted, or power turned OFF/ON
The actual network configuration and the CC-Link IE Field diagnosis network configuration may at times not match.
Confirmation as to whether these match is possible in 'Network configuration mismatch occurrence status' (SB0098).
• By updating the CC-Link IE Field Network diagnosis network configuration, it is possible to match the actual
network configuration with the network configuration diagram. (MELIPC MI5000 Series User's Manual
(Application))
• When the network configuration is updated, all stations reconnect to the network, so all stations may have
errors momentarily and output may be OFF for connected slave stations. Configure as necessary to
maintain output. ( Page 63 Output retention at data link abnormality)
Network configuration (Transmission line type) and operation
Network configuration
Star connection
Line connection
■Output retention at data link abnormality
This product retains output at data link abnormality.
■Station number of connection station
Ensure no duplication when setting station numbers.
If there is duplication in station numbers, then data link may stop.
Operation
• Turning slave station or switching hub power OFF/ON
• Removal and reinsertion of an Ethernet cable connected to a switching hub
• Changing an Ethernet cable connect destination to another slave station or switching hub
• Disconnecting 10 or more devices, or more than half the slave stations
• When adding slave stations, changing the network topology
• Turning the power to 2 or more stations OFF or ON
• Removal and reinsertion of Ethernet cables from two or more stations
(when stations with a data link abnormality are reconnected, data link abnormalities result for all stations. )
• Disconnecting 10 or more devices, or more than half the slave stations
• When adding slave stations, changing the network topology
6 WIRING AND CONNECTION OF SYSTEM COMPONENTS
6.3 Network Configurations
6
63

Advertisement

Table of Contents
loading

Table of Contents