Omron SYSMAC CV1000 User Manual

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3. The relevant instructions are TIM, TIMH, TTIM, TIMW, and TMHW.
4. The relevant instructions are CNT, CNTR, and CNTW.
5. Values in parentheses apply to CV1000, CV2000, CVM1-CPU11, and
CVM1-CPU21 models.
Delimiter (command): By inserting delimiter codes, it is possible to designate
up to 128 words and/or bits. Words in the TIM and CNT Areas are regarded as
two words.
Response code (response): 00 is returned if the operation was normal.
5-33-2 Reading Data
The following command is used to read the contents of the words/bits that have
been registered.
Command Format
@
QQ I R
X10
1
X10
0
Header
code
Subheader
code
Terminator
*
Node no. FCS
r
Response Format
The data will be returned in the the order registered.
@QQIR
,
Header
code
Subheader
code
Delimiter
Terminator
X16
1
X16
0
ON/
OFF
X10
3
X10
2
X10
1
X10
0
X16
3
X16
2
X16
1
X16
0
FCS
,
,,
ON/
OFF
X10
1
X10
0
Bit data
(ON for 1 and OFF for 0)
Word data
If word data is designated for a
timer or counter, the status of the
Completion Flag and the PV will
be returned. If word data is not
designated, on the status of the
Completion Flag will be returned.
Word data
CIO Area
Auxiliary Area
DM Area
*
Word data
Node no. Response
code
s
Parameters Read area (command): The read data will be returned in the order in which the
items were registered. If a bit number is designated, bit data (0 or 1) will be re-
turned. if a word is designated, word data will be returned. If a word is designated
of a timer or counter, bit data (Completion Flag status) followed by word data
(PV) will be returned.
I/O REGISTER Section 5-33

Omron SYSMAC CV1000 Specifications

General

Manufacturer	Omron
Type	PLC
Memory Capacity	Not specified in detail
Communication Ports	RS-232C
Power Supply	24 VDC or 100-240 VAC (depending on model)
Operating Temperature	0°C to 55°C
Humidity	10% to 90% (non-condensing)
Vibration Resistance	10 to 57 Hz, 0.075 mm amplitude
Shock Resistance	10 G
Model	SYSMAC CV1000

Summary

SECTION 1 Introduction

1-3 Communications Specifications

SECTION 2 Switch Settings and Communications Parameters

2-1 CPU Settings and Parameters

2-2 Host Link Unit Settings and Parameters

Details on Host Link Unit components, switches, and setting procedures.

SECTION 3 Installation

3-3 Connection Cables for the Host Link Unit

3-4 RS-232C Connections

Specifications and connection methods for RS-232C connections.

3-5 RS-422 Connections

Specifications and connection methods for RS-422 connections.

3-9 Wiring

SECTION 4 Communications

4-1 Initial Communications Test

Steps for performing an initial test to verify system operability.

4-3 C-mode Commands

Details C-mode commands, protocol, blocks, and checksum calculation.

4-5 Communications Timing

Explains transmission timing in full-duplex and half-duplex communications.

SECTION 5 C-mode Commands

5-1 C-mode Command List

5-22 STATUS READ

5-24 ERROR READ

Reads and clears PC errors.

SECTION 6 Maintenance and Troubleshooting

6-1 Maintenance

Explains maintenance methods and procedures for the Host Link System.

6-2 Indicators

6-3 C-mode Response Codes

Appendix D Sample Programs Including Commands for Host Computer

Program Example 1: Data Transfer to Host Computer (SEND)