Mitsubishi Electric CANopen ME3CAN1-L, User Manual

Page: 60 / 188

Detailed Description of the Module Buffer Memory Details: Layer 2 Message Mode
3 – 38 MITSUBISHI ELECTRIC
3.6.3 Layer 2 RTR flags (Un\G8350–Un\G8352)
If the ME3CAN1-L is set to Layer 2 communication mode, an incoming RTR message is indicated in the
buffer memory if the following conditions are satisfied:
– Matching the "CAN-ID n" of one of the Layer 2 message slots.
– The message slot "n" is configured as a transmit message slot.
– The message slot "n" is set to "no auto RTR response" (6FFF
H
).
("n" is one of the message slots 1 to 42.)
The bits in the "RTR message reception list" are updated independently from the output signal Yn1.
If a valid RTR message is received the related Layer 2 RTR flag is set.
When Yn1 is set to ON the data is copied to the internal data buffer and transmitted. The related
Layer 2 RTR flag is automatically reset when a message has been transmitted from the message slot.
RTR message reception list
Indicates whether reading from and writing to a sequence program are enabled.
R: Read enabled
W: Write enabled
Address
(Decimal)
Bit No. Description R/W
���
8350
Bit 0 RTR message for Layer 2 message slot 1 received
R
Bit 1 RTR message for Layer 2 message slot 2 received
:
:
:
:
Bit 14 RTR message for Layer 2 message slot 15 received
Bit 15 RTR message for Layer 2 message slot 16 received
8351
Bit 0 RTR message for Layer 2 message slot 17 received
Bit 1 RTR message for Layer 2 message slot 18 received
:
: :
:
Bit 14 RTR message for Layer 2 message slot 31 received
Bit 15 RTR message for Layer 2 message slot 32 received
8352
Bit 0 RTR message for Layer 2 message slot 33 received
Bit 1 RTR message for Layer 2 message slot 34 received
:
:
:
:
Bit 7 RTR message for Layer 2 message slot 42 received
Bit 8 Not used
—
:
:
:
:
Bit 15 Not used
Tab. 3-34: Allocation of the buffer memory addresses Un\G8350 to Un\G8352