User`s manual
DeviceNet (Master) Function
8-9
8
[2] Switch settings (operation)
Set SW7 and SW8 and operate the SCAN switch on the JW-32CUM1.
(1) Switch SW7
Select a basic operation mode (master/slave) for DeviceNet communication, and an input/output data
allocation system when editing the scan list.
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SW7
OFF side ON side
Switch SW7
Switch SW8
(Rear side of JW-32CUM1)
(O: Valid setting —: Invalid setting)
Basic operation
mode
Switch No. Set details
Master Slave
O—
SW7-1
CU operation when a communication error occurs
- Select whether or not to continue operation of JW30H (JW-32CUM1) control section
when a communication error occurs while communicating with a slave station.
- When the slave mode is selected, this item will always be "continuous processing,"
regardless of the setting.
SW7-2
Synchronous/asynchronous CU operation
- Select whether or not to synchronize the one cycle of communication with the JW30H
(JW-32CUM1 control section).
- When the slave mode is selected, this item will always be "asynchronous processing,"
regardless of the setting.
SW7-3, 4
I/O data allocation method
- I/O data table allocation method set by editing the scan list.
- Details of allocation method - See page 8-21
SW7-5, 6
Data length while editing the scan list (for each node)
- Select the data length for each node when "even allocation" is selected, and select the
vacant node data length when "sequential allocation to empty nodes" has been
selected.
SW7-7
Request "explicit" message
- Select whether or not to use the "explicit" message.
OOSW7-8
Basic operation mode
- Select basic operation mode (master/slave) of the JW-32CUM1 (DeviceNet section).
OFF The JW30H continues operation when a communication error occurs.
ON
The JW30H stops operation (set to program mode) when a communication
error occurs. (Default setting)
OFF Not synchronized.
ON Synchronized. (default setting)
SW7-4 SW7-3 Details
OFF OFF Address order allocation (default setting)
OFF ON Even number allocation
ON OFF
Allocation in the order in which vacant
nodes are occupied
ON ON Allocation prohibited
SW7-6 SW7-5 Details
OFF OFF 1 byte (default setting)
OFF ON 2 bytes
ON OFF 4 bytes
ON ON 8 bytes
- Enabled when system
memory #321= 0.
- See page 8-14.
OFF Do not us the "explicit" message.
ON Use the "explicit" message. (default setting)
OFF Master (default setting)
ON Slave