RKC INSTRUMENT Z-TIO-G, Instruction Manual

Page: 60 / 246

6. RKC COMMUNICATION
6-8
IMS01T28-E4
6.2 Selecting
6.2.1 Selecting procedures
Selecting is the action where the host computer requests one of the connected SRZ to receive data. An
example of the selecting procedure is shown below:
Host
computer
send
[ ]
SRZ send Host computer send
[Data] [BCC]
(1) (2)
(5)
(3)
(4)
(6)
[Address]
(7)
or
E
O
T
E
O
T
S
T
X
E
T
B
E
T
X
A
C
K
N
A
K
[Identifier]
Memory area number
When selecting
the data corresponding
to the memory area
No response
(1) Data link initialization
Host computer sends EOT to the SRZ to initiate data link before selecting sequence.
(2) Sending selecting address from the host computer
Host computer sends selecting address for the selecting sequence.
Address (2 digits):
This data is a module address of the SRZ to be selected and must be the same as the module address set
value in item
3.1 Module Address Setting (P. 3-2) .
As long as the data link is not initialized by sending or receiving EOT, the selecting address once
sent becomes valid.
(3) Data sent from the host computer
The host computer sends data for the selecting sequence with the following format:

When no Memory area number is specified
Identifier Data BCC ETB STX
Identifier Data BCC ETX STX
or