JUMO 902910 CANtrans T RTD Temperature Probe with CANopen Output Operating Instructions - Manual (Page 22)

22
5 CANopen function
Settings for
Node Guarding The settings for the Node Guarding slave are made in the object directory, via
the parameters Guard Time (0x100C) and Live Time Factor (0x100D).
The Node Guarding slave calculates its own live time to be the product of
these two parameters. If the transmitter does not receive a Node Guarding
request within the live time, the Live Time Guarding Event is initiated and the
transmitter adopts the "Preoperational" state.
If Guard Time or Live Time Factor has the value 0, then Live Time = 0 and no
Live Guarding Event is initiated. The NMT slave, however, will still answer any
NMT request by the NMT master.
If Guard Time and Live Time Factor have the value 0 (factory setting), Node
Guarding is not active.
The Node Guarding and Heartbeat functions can only be activated one at a
time, but never simultaneously.
5.9 LSS
CANtrans transmitters support the LSS standard (Layer Setting Services) as
per DSP-305, V1.1.
This can be used to set the baud rate and node ID for the entire plant in a stan-
dardized manner.
The LSS address of the transmitter is specified on the nameplate, so it is visi-
ble from the outside.
The latest setup tools from different manufacturers can also be used to ope-
rate this function.
As an alternative, the baud rate and node ID are also settable via objects in the
object dictionary.
see chapter 4.1 “Setting the CAN baud rate”, page 12;
see chapter 4.2 “Setting the node ID”, page 13.
Guard Time Setting the object 0x100C
milliseconds 0 — 65535
(0 = inactive)
Live Time Factor Setting the object 0x100D
Factor 0 — 255
(0 = inactive)