Yaskawa MP900 Series Machine Controller for Standard Operation - Manual (Page 256)

3.7 MP940 Module Definitions
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3. Saving Parameters
When the parameter settings have been completed, save the parameters by selecting File
(F) and then selecting Save (S) from the menu.
4. I/O Allocation Settings Supplementary Explanation
a) Master/Slave Selection and MAC ID Settings
Select the operating mode in Master/Slave Settings to match the 260IF setting switch
SW1 (X1) set value.
Set the DeviceNet address in MAC ID to match the 260IF setting switches SW2 and
SW3 set values.
b) Communications Cycle Settings
Enter the communications cycle time required in 4.2 Calculating Communications
Cycle Times in the MP900 Series Machine Controller User's Manual: 260IF
DeviceNet (SIEZ-C887-5.2).
This setting is not necessary when using the 260IF as a DeviceNet slave.
c) I/O Allocation
Allocate the I/O registers for sending and receiving I/O data between the Controller CPU and
the 260IF according to the DeviceNet system configuration.
TYPE Set the I/O transmission type (TYPE) to Polled or Strobed.
• Polled enables any DeviceNet slaves to be set.
• Strobed enables input only, and limits DeviceNet slaves to commu-
nications of 8 bytes maximum.
For details on polled and strobed connections, refer to the DeviceNet
specifications manual.
EM (Explicit
Message) EM allocation (EM) is checked only when the 260IF is the DeviceNet
master and only message communications are to be performed with the
slaves. DeviceNet slaves performing I/O transmission can exchange
messages, but EM allocation is not necessary to be set.
COMMENT A comment of up to 32 characters can be input to include the name,
type, or other information on the relevant device.
Setting Item Details