Mitsubishi MELSEC-Q Series User Manual page 180

4
COMMUNICATIONS BETWEEN CPU MODULES
Item
Specifies the number of points for data communication
Number of points
in word unit.
Specifies the device which performs the data
communication (auto refresh).
Specifies the device sent by the host CPU when the
Start
CPU specific send range setting is the host CPU, and
specifies the device received by the host CPU when the
CPU specific send range setting is the other CPU.
4
- 30 4.1 Communications between CPU modules using CPU shared memory
4.1.3 Communication by auto refresh using multiple CPU high speed transmission area
(b) Auto refresh setting
Auto refresh setting is a setting to use the auto refresh function.
The 32 ranges can be set for each CPU modules.
Auto refresh setting screen and the setting range are shown below.
Table4.9 List of setting item for the refresh setting
Setting description
* 1: Setting which exceeds the number of points of the host CPU send area allocated to the each CPU
module (CPU specific send range) cannot be set.
* 2: Bit device can be specified in units of 32 points (2 words) only.
* 3: Device number is No.1 to No.32, which cannot be duplicated.
Diagram 4.28 Auto refresh setting screen
• Setting range: 2 to 14336 points
• Setting unit: 2 points
• Device available for send range
: X, Y, M, L, B, D, W, R, ZR, SM, SD,
SB, SW
• Device available for receive range
: X, Y, M, L, B, D, W, R, ZR
Sets "blank" when auto refresh is not
executed.
Setting range
*1
*2
*3
*3