8
PROGRAMMING
8.3 Using Link Special Relay (SB) and Link Special Register (SW)
8
- 54
1
O
V
ER
VI
E
W
2
SYST
EM
CO
NF
IG
URA
T
IO
N
3
SPECI
F
IC
A
T
IO
N
S
4
F
UNCT
IONS
5
PREP
ARA
T
IO
N AND
SET
UP
6
P
A
RAM
E
T
E
R
SET
TI
NG
7
PRO
C
ESSI
NG
T
IM
E
8
PRO
G
R
AM
M
ING
(13)Checking normal (own) station No. setting status
The normal (own) station No. setting status can be checked not only by CC IE Control
Network Diagnostics but also with the link special relay (SB) and link special register
(SW). (
Section 10.3 CC IE Control Network Diagnostics)
(a) When station No. is set in Network parameters
After power-on, when a station No. is entered, Station No. setting status (own
station) (SB0070) is turned OFF.
The station No. of the own station is stored in Station No. (SW0042).
(b) When station No. is set with a UINI instruction
After power-on, because no station No. is set, Station No. setting status (own
station) (SB0070) is turned ON.
The absence of the station No. setting is stored in Station No. (SW0042).
When a station No. is set up by execution of the UINI instruction, Station No.
setting status (own station) (SB0070) is turned OFF.
The station No. of the own station is stored in Station No. (SW0042).
(14)Dedicated instructions
The following link special relays (SB) and link special registers (SW) are used for
dedicated instructions. (
CHAPTER 9 DEDICATED INSTRUCTIONS)
(a) READ/SREAD/WRITE/SWRITE/REQ/SEND instruction
Create an interlock with the following link special relay (SB) and link special
register (SW) before executing an instruction.
• Baton pass status (own station) (SB0047)
• Baton pass status of each station (SB00A0) (When all stations are specified)
• Baton pass status of each station (SB00A0 to SW00A7)
Table 8.37 SB/SW used in checking normal (own) station No. setting status
No.
Description
No.
Description
—
SW0042
Station No.
SB0070
Station No. setting status (own station)
—
Table 8.38 SB/SW used for READ/SREAD/WRITE/SWRITE/REQ/SEND instruction
No.
Description
No.
Description
SB0047
Baton pass status (own station)
—
SB00A0
Baton pass status of each station
SW00A0 to
SW00A7
Baton pass status of each station
Summary of Contents for QJ71GP21-SX
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