Mitsubishi MR-JE-100A, Instruction Manual, Page: 239 / 396

6. APPLICATION OF FUNCTIONS
6 - 26
(b) Writing
Since cam data is 8 Kbytes, the cam data is divided by 64 bytes and written via Modbus RTU
communication. The following shows the procedure for writing cam data with the register addresses
2D88h, 2D89h, and 2D8Bh.
N == 131? (Note)
Writing
starts.
No
N = 0
N = N + 1
Set "0" in Request store CAM (address: 2D88h).
Set "N" in CAM area (address: 2D89h).
Use the address 2D8Bh to read the cam data (64 bytes) in
CAM area (2D89h).
Writing is
completed.
Yes
Note. The size of cam data is fixed to 8388 bytes. Thus, N, the setting range of the cam
storage area is 0 to 131. Only a part of cam data cannot be written. Write the cam
data stored in all areas.
6.1.8 Function block diagram for displaying state of simple cam control
CDV
CMX
Input pulse of
synchronous encoder
Point table command
Servo motor
Encoder
Clutch
Cam position
compensation
processing
Cam
conversion
processing
Cam axis one cycle current value
Cam standard position
Cam axis feed current value
Cam stroke amount in execution
Cam No. in execution
Main axis current value
Main axis one cycle
current value
ECDV
ECMX
+
-
+
-
M