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Cat.No. W365–E1–1
SYSMAC CQM1H Series
CQM1H-SCB41
Serial Communications Board
OPERATION MANUAL
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SYSMAC CQM1H Series CQM1H-SCB41 Serial Communications Board Operation Manual Produced September 1999
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Notice: OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual. The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or dam- age to property. ! DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. ! WARNING
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About this Manual: This manual describes the installation and operation of the SYSMAC CQM1H-series CQM1H-SCB41 Se- rial Communications Board and includes the sections described below. The Serial Communications Board is classified as an Inner Board. Read this manual and all related manuals listed in the following table carefully and be sure you understand the information provided before attempting to install and operate a Serial Communications Board. Name Cat. No. Contents SYSMAC CQM1H-series W36
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TABLE OF CONTENTS PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi 1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii 2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii 3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS SECTION 7 Communications for 1:1 Data Links . . . . . . . . . . . . . . . . 107 7-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 7-2 Application Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 7-3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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PRECAUTIONS This section provides general precautions for using the Serial Communications Boards. The information contained in this section is important for the safe and reliable application of the Serial Communica- tions Boards and the PC in general. You must read this section and understand the information contained before at- tempting to set up or operate a PC system containing a Serial Communications Board. 1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Conformance to EC Directives 3 1 Intended Audience This manual is intended for the following personnel, who must also have knowl- edge of electrical systems (an electrical engineer or the equivalent). • Personnel in charge of installing FA systems. • Personnel in charge of designing FA systems. • Personnel in charge of managing FA systems and facilities. 2 General Precautions The user must operate the product according to the performance specifications described in the operation manuals. Before
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Conformance to EC Directives 5 4 Operating Environment Precautions ! Caution Do not operate the control system in the following locations: • Locations subject to direct sunlight. • Locations subject to temperatures or humidity outside the range specified in the specifications. • Locations subject to condensation as the result of severe changes in tempera- ture. • Locations subject to corrosive or flammable gases. • Locations subject to dust (especially iron dust) or salts. • Locations subject to
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Conformance to EC Directives 5 • Always discharge static electricity by touching a grounded metal part before mounting the Serial Communications Board. • Always discharge static electricity by touching a grounded metal part before connecting cable connectors to RS-232C or RS-422A/485 port of the Serial Communications Board. • Be sure that the connectors, terminal blocks, expansion cables, and other items with locking devices are properly locked into place. Improper locking may result in malfunct
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Conformance to EC Directives 6 6 Conformance to EC Directives 6-1 Applicable Directives • EMC Directives • Low Voltage Directive 6-1-1 Concepts EMC Directives OMRON devices that comply with EC Directives also conform to the related EMC standards so that they can be more easily built into other devices or ma- chines. The actual products have been checked for conformity to EMC stan- dards (see the following note). Whether the products conform to the standards in the system used by the customer, ho
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Conformance to EC Directives 6 Recommended Ferrite Cores The following ferrite core (data line noise filter) is recommended: 0443-164151 by Fair-Rite Products Corp. Low impedance, 25 MHz: 90 Ω , 100 MHz: 160 Ω Recommended Mounting Method Mount the core on one turn of the communications cable, as shown in the follow- ing illustration. Mount the cores as closely to the end of the communications cable as possible, as shown in the following illustration. Serial Commu- nications Board xvi
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SECTION 1 Introduction This section introduces the hardware and software functions of the Serial Communications Board, including the serial com- munications modes, system configurations, and specifications. 1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1-1-1 Model Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1-1-2 Serial Communications
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Basic Operating Procedure Section 1-1 1-1 Overview 1-1-1 Model Number Name Model Specifications Serial Communications Board CQM1H-SCB41 One RS-232 port One RS-422A/485 port 1-1-2 Serial Communications Boards The Serial Communications Board is an Inner Board for the CQM1H-series PCs. One Board can be installed in Inner Board slot 1 of a CQM1H-series CPU Unit. The Board cannot be installed in slot 2. The Board provides two serial communications ports for connecting host com- puters, Programmable T
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Protocol Overview Section 1-1 1-1-4 System Configuration The following serial communications modes are supported by the Serial Com- munications Board: Host Link (SYSMAC WAY), protocol macro, no-protocol, 1:1 Data Links, 1:N-mode NT Link, and 1:1-mode NT Link modes. The devices shown in the following diagram can be connected. Note The 1:1-mode NT Link and 1:N-mode NT Link communications modes use dif- ferent protocols that are not compatible with each other. Programming Device (excluding General-
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Basic Operating Procedure Section 1-2 1-1-5 Mounting Location The Serial Communications Board can be installed in Inner Board slot 1 of a CQM1H-series CPU Unit. The Board cannot be installed in slot 2. Serial Communications Board 1-2 Protocol Overview The following six serial communications modes can be used as required for each serial communications port on the Serial Communications Board. • Host Link: For connections to host computers, personal computer peripheral devices, or Programmable Term
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Protocol Overview Section 1-2 1-2-1 Host Link Mode In Host Link Mode, C-mode Host Link commands can be sent from a computer, PT, or other host to read or write I/O memory in the PC or to control the PC’s oper- ating modes. The TXD(––) instruction can be used to send ASCII data to the host. This is called slave-initiated communications or unsolicited communications. Note 1. Programming Devices can also be connected in Host Link mode. 2. A 4-wire connection must be used when using an RS-422A/485
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Basic Operating Procedure Section 1-2 • Pin 8 on the DIP switch on the front of the CQM1H-series CPU Unit must be turned ON to use the CX-Protocol. While pin 8 is ON, you will not be able to use any of the CPU Unit or Board ports for the CX-Programmer, SYSMAC-CPT, or SYSMAC Support Software. • The model of PC must be set to the C200HG and the model of CPU Unit must be set to the CPU43. • Refer to 5-2 Restrictions in Using the CX-Protocol for further details. 1-2-3 No-protocol Communications The
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Protocol Overview Section 1-2 Note A 4-wire connection must be used when using an RS-422A/485 port. Serial Communications Board CQM1H or other C-series PC CQM1H RS-232C Master PC Slave PC LR 00 LR 00 Master area to Master area to (sent) (received) LR 31 LR 31 LR 32 LR 32 to Slave area Slave area to (received) (sent) LR 63 LR 63 1-2-5 NT Links –– 1:N Mode A PC can be connected to one or more Programmable Terminals (PTs) using an RS-232C or RS-422A/485 port. The I/O memory of the PC is allocated t
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Basic Operating Procedure Section 1-4 1-3 Specifications 1-3-1 Serial Communications Board Device name Serial Communications Board Model number CQM1H-SCB41 Classification CQM1H-series Inner Board Supporting CPU Units CQM1H-CPU51/61 Number of mountable Boards/PC and One Board per PC maximum, must be in Inner Board slot 1 mounting location Serial communications Port 1 RS-232C ports Port 2 RS-422A/485 Protocols Port 1 Host Link, protocol macro, no-protocol, 1:1 Data Link, 1:N-mode NT Link or 1:1-mo
