Omron C200HG Manuale Utente
418
8-1
Introduction
The RS-232C port and peripheral port built into the C200HX/HG/HE PC’s CPU
Unit support the following communications functions:
Unit support the following communications functions:
•
Communications with Programming Devices (e.g., Programming Console or
SSS.)
SSS.)
•
Host Link communications with personal computers and other external de-
vices.
vices.
•
RS-232C (no-protocol) communications with personal computers and other
external devices.
external devices.
•
One-to-one link communications with another PC.
•
NT link communications (one-to-one or one-to-N) with Programmable Termi-
nals (PTs) equipped with an NT link interface.
nals (PTs) equipped with an NT link interface.
In addition to these communications functions, optional Communications
Boards that support Protocol Macros can be installed in most C200HX/HG/HE
PCs.
Boards that support Protocol Macros can be installed in most C200HX/HG/HE
PCs.
The following table summarizes the communications functions.
Function
Connected device
Connection
Summary
Related
instructions
Host Link
Host computer or PT
One-to-one
or One-to-N
or One-to-N
Provides communications between a
host computer and PC.
host computer and PC.
The PC’s operating status and the
contents of data areas can be moni-
tored from the host computer.
contents of data areas can be moni-
tored from the host computer.
TXD(––) can be used to transmit data
from the PC’s data areas to the host
computer.
from the PC’s data areas to the host
computer.
Host Link commands,
TXD(––)
TXD(––)
RS-232C
(no protocol)
(no protocol)
Host computer or
other RS-232C device
other RS-232C device
One-to-one
TXD(––) and RXD(––) can be used to
manage simple data transfer se-
quences such as inputs from bar code
readers or outputs to printers.
manage simple data transfer se-
quences such as inputs from bar code
readers or outputs to printers.
Control signals RS, CS, ER, and DR
can be controlled by the instructions.
can be controlled by the instructions.
TXD(––), RXD(––)
One-to-one Link
PC
One-to-one
Makes a one-to-one connection be-
tween two PCs using the LR areas of
the PCs.
tween two PCs using the LR areas of
the PCs.
---
NT Link
PT
One-to-one
or One-to-N
or One-to-N
Provides data transfers between the
PC and one or more PTs.
PC and one or more PTs.
---
Protocol Macro
Other serial device
One-to-one
or One-to-N
or One-to-N
The Protocol Macro function allows
the user to define separate data trans-
fer sequences and transfer mes-
sages.
the user to define separate data trans-
fer sequences and transfer mes-
sages.
Up to 1,000 communications se-
quences can be registered.
quences can be registered.
A support program is provided that
simplifies creation of communications
sequences.
simplifies creation of communications
sequences.
PMCR(––)
Introduction
Section 8-1