Instruction manual

5. RKC COMMUNICATION PROTOCOL
IMR01H02-E3
16
5.1.1 Polling procedures
(1) Data link initialization
Host computer sends EOT to the controllers to initiate data link before polling sequence.
(2) Data sent from host computer - Polling sequence
The host computer sends the polling sequence in the following two types of formats:
• Format in which no memory area number is specified, and
• Format in which the memory area number is specified.
#"
When no memory area number is specified
To be sent in this format for any identifier not corresponding to the memory area.
#"
When the memory area number is specified
To be sent in this format for any identifier corresponding to the memory area.
1. Address (2 digits)
• Multi-point mode
The device address specifies the controller to be polled and each controller must have its own
unique device address.
For details, see 4.2 Setting the Communication Parameters (P. 9).
4.3.
Example:
2.1.
Memory
area
number
IdentifierAddress
ENQENQ
S11KK0
1
4.
Example:
3.1.
IdentifierAddress
ENQENQ
1M0
1