Omron CQM1H - PROGRAM User Manual

41
Interrupt Functions Section 1-4
Note These words are refreshed only once every cycle, so there may be a
difference from the actual PV.
When high-speed counter 0 is not being used, the bits in these words can
be used as work bits.
2. Using the PRV(62) Instruction
Read the PV of high-speed counter 0 by using the PRV(62) instruction.
The PV of high-speed counter 0 is stored as shown below. The leftmost
digit will be F for negative values.
The PV is read when the PRV(62) instruction is actually executed.
Changing the PV
There are two ways to change the PV of high-speed counter 0. The first way is
to reset it by using the reset methods. (In this case the PV is reset to 0.) The
second way is to use the INI(61) instruction.
The method using the INI(61) instruction is explained here. For an explanation
of the reset method, refer to the beginning of this description of high-speed
counter 0.
Change the timer PV by using the INI(61) instruction as shown below.
To specify a negative number, set F in the leftmost digit.
Operation Example This example shows a program for using high-speed counter 0 in the Incre-
menting Mode, making comparisons by means of the target matching method,
and changing the frequency of pulse outputs according to the counter’s PV.
Before executing the program, set the PC Setup as follows:
DM 6642: 0114 (High-speed counter 0 used with software reset and Incre-
menting Mode). For all other PC Setup, use the default settings. (Inputs are
not refreshed at the time of interrupt processing, and pulse outputs are exe-
cuted for IR 100.)
In addition, the following data is stored for the comparison table:
DM 0000: 0002 — Number of comparison conditions: 2
DM 0001: 1000 — Target value 1: 1000
DM 0002: 0000
DM 0003: 0101 — Comparison 1 interrupt subroutine: 101
DM 0004: 2000 — Target value 1: 2000
(@)PRV(62)
000
000
P1
P1: First word address of PV
Leftmost 4 digits Rightmost 4 digits Differential phase mode Incrementing mode
P1+1 P1 F0032768 to 00032767
(−32,768)
00000000 to 00065535
Leftmost 4 digits Rightmost 4 digits Differential phase mode Incrementing mode
D+1 D
F0032768 to 00032767 00000000 to 00065535
(@)INI(61)
000
002
D
D: First word address for storing PV change
data

Omron CQM1H - PROGRAM Specifications

General

I/O Capacity	Up to 512 points
Power Supply	100 to 240 VAC, 50/60 Hz or 24 VDC (depending on model)
Instruction Set	Basic and advanced instructions
Operating Temperature	0 to 55°C
Program Capacity	7.2K to 15.2K steps
Communication Ports	RS-232C
Expansion Slots	Up to 3 expansion units
Type	Programmable Logic Controller (PLC)
CPU Type	RISC
Program Memory	7.2K to 15.2K steps
I/O Points	512 max
Expansion Capability	Up to 3 expansion units
Data Memory	RAM (battery backup)

Summary

PRECAUTIONS

1 Intended Audience

Specifies the target personnel for this manual, requiring knowledge of electrical systems and FA systems.

2 General Precautions

Outlines user responsibilities for operating the product according to specifications and consulting representatives for specific applications.

3 Safety Precautions

Details critical safety warnings related to I/O refreshing, touching internal components, disassembly, and power supply handling.

5 Application Precautions

Provides essential safety guidelines for using the PC System, including grounding, power handling, and unit mounting.

SECTION 1 PC Setup and Other Features

1-1 PC Setup

Explains operating parameters for CQM1H control, including default values and how to change them.

SECTION 2 Inner Boards

2-1 High-speed Counter Board

Describes the functions, input modes, comparison operations, and external outputs of the High-speed Counter Board.

2-2 Pulse I/O Board

Details the Pulse I/O Board's support for two pulse inputs and two pulse outputs, including input modes and interrupts.

SECTION 3 Memory Areas

3-1 Memory Area Structure

Explains the memory areas used by the CQM1H PC, including IR, Work, Controller Link status, MACRO operand, Inner Board, Analog, High-speed Counter, and EM areas.

SECTION 4 Ladder-diagram Programming

4-1 Basic Procedure

Outlines the fundamental steps for writing a program, including obtaining I/O lists and drawing ladder diagrams.

4-4 Controlling Bit Status

Details instructions for controlling individual bit status: OUTPUT, OUTPUT NOT, SET, RESET, DIFFERENTIATE UP/DOWN, KEEP.

4-6 Programming Precautions

Provides essential precautions for drawing clear ladder diagrams and inputting programs, emphasizing instruction order and TR bits.

4-7 Program Execution

Describes the CPU Unit's program scan from top to bottom, checking conditions, and executing instructions.

SECTION 5 Instruction Set

SECTION 6 Host Link Commands

6-1 Host Link Command Summary

Provides a summary table of Host Link commands available for CQM1H communications.

6-4 Command and Response Formats

Details the formats for commands issued from the host computer and responses received from the PC.

6-5 Host Link Commands

Lists and describes various Host Link commands for reading and writing data in IR, SR, LR, HR, DM, EM, and AR areas.

SECTION 7 CPU Unit Operation and Processing Time

7-1 CPU Unit Operation

Explains the overall operation flowchart of the CQM1H CPU Unit and defines cycle time.

7-2 Power Interruptions

Details the CPU Unit's behavior during power interruptions and momentary power supply failures.

7-3 Cycle Time

Explains the processes involved in a single execution cycle and their respective processing times.

SECTION 8 Troubleshooting

8-2 Programming Console Operation Errors

Lists common error messages encountered when using the Programming Console and their appropriate responses.

8-3 Programming Errors

8-5 Operating Errors

8-6 Error Log

8-7 Troubleshooting Flowcharts

Appendix A Programming Instructions

5-8 Ladder Diagram Instructions

Explains basic instructions like LOAD, AND, OR, and their combinations, including logic block instructions.

5-9 Bit Control Instructions

Covers instructions for controlling individual bit status: OUT, OUT NOT, SET, RESET, DIFU, DIFD, KEEP.

5-14 User Error Instructions: FAILURE ALARM AND RESET – FAL(06) and SEVERE FAILURE ALARM – FALS(07)

Describes instructions for outputting error numbers for operation, maintenance, and debugging, including non-fatal and fatal errors.

5-16 Timer and Counter Instructions

Details instructions for managing timers and counters, including TIM, TIMH, CNT, CNTR, TTIM, STIM, and CTBL.

5-29 Network Instructions

Explains instructions for communicating with other PCs via the Controller Link System, including SEND, RECV, and CMND.

5-30 Communications Instructions

Details instructions for serial communications, including RECEIVE (RXD), TRANSMIT (TXD), CHANGE SERIAL PORT SETUP (STUP), and PROTOCOL MACRO (PMCR).