User`s manual
DeviceNet (Master) Function
8-28
8
8-3-2 Editing the scan list
Before using the DevceNet function of the JW-32CUM1 for the first time, you will have to edit the
scan list (to allocate I/O data).
[1] Editing procedure
Shown below are the procedures used to edit the scan list.
1 Switch the JW30H (JW-32CUM1) control module to the "program mode."
2 Turn OFF the power to the JW30H and remove the JW-32CUM1.
3 Change switch SW8 on the JW-32CUM1 to "Not protected." - See page 8-10.
- If switch SW8 is set to the "protected," the procedures below will not work.
4 Install the JW-32CUM1 in the JW30H. - See chapter 5.
5 Connect any slave stations.
- Make sure to start all the slave stations. When creating a scan list without some slave stations being
turned on, the input/out allocation may be incorrect. - See *1 below.
6 Turn ON the power to the JW30H.
7 Press and hold the SCAN switch on the JW-32CUM1 for at least 3 seconds.
- The JW-32CUM1 will edit the scan list. -See * 2 below.
8 After the editing process is complete, turn OFF the power to the JW30H.
9 Remove the JW-32CUM1 from the JW30H.
0 Set switch SW8 on the JW-32CUM1 to the "protected."
q Reinstall the JW-32CUM1 in the JW30H.
w Turn ON the power to the JW30H.
e Put the JW30H (JW-32CUM1) control module in the operation mode.
*1: Connecting the slave stations mentioned in step 5 above
- When "even number allocation" or "allocation in order of securing empty nodes" is selected for the I/
O data allocation method, and some node addresses are not occupied by slave stations, those node
address will be assigned the default number of bytes. This will make operation possible with only the
connected slave stations.
When a slave station is connected at a vacant address, and if this station needs more than the
default number of bytes for I/O, the I/O addresses thereafter can be incremented by editing the next
time a scan list is created.
*2: Scan list editing procedure mentioned in step 7
- When the JW-32CUM1 is in the "not protected" and you change the JW30H to the "operation mode,"
the JW-32CUM1 will start I/O communication. However, when you press the SCAN switch
immediately after communication is started, the JW-32CUM1 will start editing the scan list. This may
cause a malfunction. Therefore, we recommend that you change to the "protected" as described in
step 8 above.