Spectrum Controls InView Series User Manual page 79

Transmission for Enabling the Heartbeat Function
Beg of
ADDR FUNC
Frame
: FF
NOTE
Response: NONE
Disable the Heartbeat Function
Transmission is as follows:
Transmission for Disabling the Heartbeat Function
Beg of
ADDR FUNC
Frame
: FF
NOTE
Response: NONE
Heartbeat Transmission
The following is the transmission for the heartbeat that is required for the display
once the heartbeat function is enabled/
Transmission for the Heartbeat
Beg of Frame
:
NOTE
Response: NONE
Clear the Display Memory
This command is used to clear all of the memory (messages) in the displays,
resize the memory partitions to 100 bytes (2,000 messages), and load each
memory slot with a default message number (for example, Message #0002)
H.O
ADDR
01 00
See InView Display Communication Protocol Functions and Descriptions
on for further explanation of the InView sign protocol being used.
H.O
ADDR
01 00
See InView Display Communication Protocol Functions and Descriptions
on for further explanation of the InView sign protocol being used.
Data
00
Recommended interval to be transmitted: once every 500 ms.
Variable data or message data that is being updated in the displays acts as
a heartbeat for the No Network Activity error message.
Chapter 4: InView Protocol
L.O
DATA
ADDR
64 ^AZFF^BE01^D9C
L.O
DATA
ADDR
64 ^AZFF^BE00^D9D
EOF
CR
User's Manual 0300277-02 Rev. D
4-15
Ready to rec.
EOF
response
CR LF
Ready to rec.
EOF
response
CR LF
Ready to rec. response
LF