Omron SYSMAC CV1000 User Manual

83
5-18 SV READ 3
Finds the specified timer or counter instruction in the program (main program
area) starting from the specified address and reads the constant SV in 4-digit
BCD or reads the address of the word containing the SV. This command can be
used to start reading past 10K words of program memory, i.e., 6-digit addresses.
Note 1. Only the first instruction in the program after the specified address that
meets the specifications will be found.
2. Only the main program will be searched for CVM1 PCs.
3. If the PC is programmed using SFC, only action 0 will be searched. The en-
tire main program will be searched if SFC programming is not used.
Command Format
@ R%
x 10
0
x 10
1
x 102x 10
3
x 10
0
x 10
1
x 10
2
x 10
3
x 10
0
x 10
1
OP2OP1 OP4OP3x 16
0
x 10
5
FCS
Unit no.
Terminator
Header code Address Timer/Counter instruction Timer/Counter number
*s
In this case, this must be “0.”
Response Format
@ R%
x 10
0
x 10
1
OP2 OP4OP3 x 10
2
x 10
3
x 10
0
x 10
1
x 16
0
x 16
1
OP1
Unit no. FCS TerminatorHeader
code
Response
code
Operand SV
*s
Parameters Address (command): Specify the address from which to start searching for the
timer/counter instruction in six digits of BCD.
Timer/Counter instruction (command): Specify in four letters the instruction
used to create the timer/counter (see below).
Timer/Counter number (command): Specify the timer/counter number used
to define the timer/counter.
Timer/Counter instruction
Instruction Timer/Counter
b
OP1 OP2 OP3 OP4
number
T M H W HIGH-SPEED TIMER
WAIT (TMHW<015>)
000 to 0511
(CVM1-CPU01-EV2
C)
T I M W TIMER WAIT
(TIMW<013>)
(C C U0
and CV500)
0000 to 1023 (other
C N T W COUNTER WAIT
(CNTW<014>)
0000
to
1023
(other
CPUs)
T I M H HIGH-SPEED TIMER
(TIMH(015))
T T I M ACCUMULATIVE
TIMER (TTIM(120))
C N T R REVERSIBLE
COUNTER (CNTR(012))
T I M space TIMER (TIM)
C N T space COUNTER (CNT)
Note A total of four letters are required to specify the instruction. Be sure to include a
space where necessary.
SV READ 3 Section 5-18

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)