Instructions

Message Types
8 (26)
4.2 Cyclic Message
With the cyclic messages commands it is possible to send CAN messages from the CAN@net NT
cyclically, precisely timed and with high frequency, whereas the application data must only be
updated by ASCII commands if required.
• up to 16 cyclic messages are possible
• configuration only via ASCII command
• each message can be configured and the transmission started and stopped individually
Valid Order of Use
► Make sure, that all cyclic messages are stopped (see CYC STOP, p. 9).
► Define the cyclic message (see CYC INIT, p. 8).
► To start the transmission, update the cyclic message (see CYC UPDATE, p. 9).
4.2.1 CYC INIT
Initializes a cyclic message. The command can only be executed when the message is not yet
transmitted.
CYC INIT <msg_num> <port> <time> <count>
Parameter
Parameter
Description
msg_num
Message number, valid values: 0–15
port
CAN port number (NT 200: 1...2, NT 420: 1...4)
time
Message cycle time in units of 0.5 ms, valid values: 1–65535 (= 0.5 ms to 32767.5 ms)
count
Maximum number of transmit repetitions, if a further update message is missing after the
start of the transmission. Valid values: 0–65535. Value 0 sets endless transmission. After
an update message the count is restarted. If the count expires, the cyclic message is
stopped.
Example
CYC INIT 0 1 200 10 "01 02 03 04 05 06 07 08"
CYC INIT 15 2 2000 0
Return Value
Return value Description
R ok
Function succeeded
R ERR <error-number> <error-description>
See List of Error Codes, p. 24
Remark
To start the transmission, call CYC UPDATE.
CAN@net NT 200/420 Software Design Guide
4.02.0332.20000 1.5 en-US