migra MPB CAN
Large Format Graphics Compatible LED Display with CANopen Interface
Page 57
microSYST Systemelectronic GmbH, Am Gewerbepark 11, 92670 Windischeschenbach
+49 9681 91960-0,
+49 9681 91960-10, [email protected], www.microsyst.de
3.12.7 Important Notes
The device must be already connected to an active CAN bus at power-on!
Otherwise a CAN error happens at sending the bootup message and it is
not possible to change (immediately) to „OPERATIONAL“!
If it can not be assured that there exists at least one other active CAN bus
member (f.e. the PLC) at power-on, then the following startup procedure
for the CAN-device is recommended (example for node-ID=1):
a)
Send "NMT, Start remote node":
TX: ID=000, LEN=2, RTR=0, DATA=01 01
b)
Request the "Nodeguard Frame":
TX: ID=701, LEN=1, RTR=1
RX: ID=701, LEN=1, RTR=0, DATA=05/85 or 7F/FF
c)
If DATA=7F/FF (=> still PRE-OPERATIONAL, red ERROR-LED is ON)
- Repeat step
b)
40 times (=> red ERROR-LED goes OFF)
- Do step
a)
again (=> node starts successful now)