Table of Contents - TG Drives

EXTENDED REGISTER GROUPS
LAN1, Local area network 1
is approx. 50us when 1Mbit/sec CAN frequency is used.
Conceptually, a particular node owns a message object. But
any node can listen to this message object by defining a
received message object with the same ID.
If multiple messages are sent on a channel without any
confirmation the some data will be overwritten in the receiving
ends.
There is no buffer for incoming messages so if a new
message comes in (on the same channel) before the previous
message was read, the old message is lost !!!!
GROUP MEMBERS (GROUP 28)
Group.Member Member
No.
Range Ability Default
LAN1.Mode 0 0..255 R(W)
Bit0 = 0
Bit0 = 1
Bit 0 is the only write able bit. All other bits are reserved and
Read only.
Normal operation.
This bit should be low for normal operation. When this bit is
high the CAN controller is disconnected from the net (bus off).
If this bit is set high then the CAN controller will be forced bus
off. It will reset the internal error handling and start a recovery
sequence where the CAN low level protocol expects to see an
idle bus.
LAN1.Status 1 0..255 RW
Bit 0-2 (0..7)
Bit3(8)
Bit4(16)
Bit5(32)
Bit6(64)
Bit7(128)
The LAN1.Status indicate the operation of the low protocol
(CAN) chip.
Last Error code, can also be read in member LAN1.LastErr.
Transmit
message successfully.
Receive
message successfully.
Reserved.
Warning. There is an abnormal rate of occurrences of errors
on the CAN bus.
Bus Off. There was an abnormal rate of occurrences of errors
on the CAN bus.
The unit is disconnected from the CAN bus.
The only way to reset this situation is to force the LAN1.Mode
bit0 high and
then low (or cycle power).
User's Manual 5.1 Inmotion Technologies AB
Doc. No.9032 0027 01 (B), Rev. 11.07.2001
143