Buffer Memory Details: Canopen€ Mode; Data Exchange Control (Un\G20); Function Mode (Un\G21) - Mitsubishi Electric MELSEC L-Series User Manual

Buffer Memory Details: CANopen€ Mode

3.5 Buffer Memory Details: CANopen€ Mode
3.5.1

Data Exchange Control (Un\G20)

This buffer memory address allows the control of the OD and EMCY data exchange.
Bit
0–7
8
9–11
12
13–15 Reserved
Tab. 3-7:
3.5.2

Function Mode (Un\G21)

The ME3CAN1-L chooses the communication function corresponding to the function mode set in the
buffer memory address 21.The possible settings are shown in the following table:
Set value
11
29
405
Other value
Tab. 3-8:
The buffer memory setting needs to be stored by Un\G22 bit 0 and afterwards to be restarted by Yn2
to make the new settings effective (Refer to section 3.5.3 and section 3.3.2).
NOTE During a restart, all Object Dictionary (OD) settings will be deleted when the CANopen€ mode is
changed.
MELSEC-L Series – CANopen€ Module ME3CAN1-L
Description
Reserved
Only in CANopen€ modes: Data exchange mode setting (only OD data)
Bit = 0: No data exchange between buffer memory and CANopen€ object dictionary
Bit = 1: Activate data exchange between buffer memory and CANopen€ object dictionary
NOTES:
The data will be also exchanged if this entire buffer memory address is set to 0 (default value).
If the bit is set and the module is not in CANopen€ state Operational, the PDO data will be exchanged after
going into Operational state.
Reserved
Data exchange status (only EMCY data)
Bit = 0: No data exchange between Emergency Message buffer memories and EMCY Receive Buffer
Bit = 1: Exchange data between Emergency Message buffer memories and EMCY Receive Buffer
For more information please refer to section 3.5.17
NOTE:
The data will be also exchanged if this entire buffer memory address is set to 0 (default value).
Assignment of the bits in buffer memory address Un\G20
Function Mode
11 bit CAN-ID Layer 2 mode
29 bit CAN-ID Layer 2 mode
CANopen€ 405 mode
—
Function mode setting in buffer memory address Un\G21
Detailed Description of the Module
Description
This mode supports the 11 bit CAN-ID Layer 2 Message.
This mode supports the 29 bit CAN-ID Layer 2 Message.
This mode supports the CANopen€ CiA€ 405 IEC 61131-3 Program-
mable Device Profile.
All other settings will generate an error (in this case bit 6 in Un\G29 is
set (Refer to section 3.5.7).
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