Network Instructions; Disable Access: Iosp(187) - Omron SYSMAC CVM1 Series Operation Manual

Network Instructions

PC Memory
Words allocated to
Special I/O Unit
S: First source word

5-34 Network Instructions

5-34-1 DISABLE ACCESS: IOSP(187)

Ladder Symbol
Description
D: Destination word
The Network Instructions are used for communicating with other control PCs or
other Units linked through the SYSMAC NET Link System, SYSMAC LINK Sys-
tem, or Controller Link System. The first two Network Instructions are used to
control the access right to the PC from both local and remote Programming De-
vices.
Variations
j IOSP(187)
(187)
IOSP
When the execution condition is OFF, IOSP(187) is not executed. When the ex-
ecution condition is ON, both read and write access to PC memory is disabled
from Programming Devices connected through the Programming Device Con-
nector or Host Link Connector, CPU Bus Units, and Communications Units (oth-
er than SYSMAC BUS Units). Access to memory is disabled until either
END(001) or IORS(188) is executed or PC operation is stopped.
If PC memory is being accessed when IOSP(187) is executed, access will not be
disabled until the current accessing has been completed.
Special I/O Unit Memory
Beginning address
for writing
Section 5-34
Number of words
to be written
385