CJ1W-SRM21 SRM21 - Datasheet Archive
CJ1W-SRM21 CSM_CJ1W-SRM21_DS_E_1_1 CompoBus/S is a high-speed I/O bus CJ1W-SRM21 Features · · · ·
CJ-series CompoBus/S Master Unit CJ1W-SRM21 CJ1W-SRM21 CSM_CJ1W-SRM21 CJ1W-SRM21_DS_E_1_1 CompoBus/S is a high-speed I/O bus CJ1W-SRM21 CJ1W-SRM21 Features · · · · · Up to 256 I/O points per Master. Up to 32 Slaves per Master. Communications cycle time: 0.5 ms (at 750 kbps). Communications distance: Up to 500 m (at 93.75 kbps). Free wiring with any branching method for up to 200 m (in long-distance communications mode). System Configuration Compobus/s Master Unit CJ1W-SRM21 CJ1W-SRM21 Remote Input Terminals Photoelectric Sensors, Proximity Sensors, or Limit Switches Remote Input Terminals (3-tier terminal block) Photoelectric Sensors, Proximity Sensors, Limit Switches Fiber Amplifier Communications Units Fiber Amplifier Units Remote Output Terminals Remote Output Terminals (3-tier terminal block) Remote I/O Terminals (3-tier terminal block) Connector I/O Terminals Solenoids or valves Photoelectric Sensors or Proximity Sensors with connectors Solenoids or valves Remote I/O Module Sensor Terminals Analog Input Terminal Analog Output Terminal CPM2A or CPM1A Terminal-block Terminator I/O Link Unit for CPM1A/CPM2A PCB Optical Fiber Sensors 1 to 5 V, 4 to 20 mA Inverters or valves 1 CJ1W-SRM21 CJ1W-SRM21 Communication Specifications Item Specification Communications method Special CompoBus/S protocol Communications baud rate High-speed Communications Mode: 750 kbps Long-distance Communications Mode: 93.75 kbps Modulation method Baseband method Coding method Manchester coding method Error control checks Manchester code check, frame length check, and parity check Cable VCTF cable (JIS C 3306) Two 0.75 mm2 conductors (2 signal wires) Four 0.75 mm2 conductors (2 signal wires and 2 power supply wires) Special Flat Cable Four 0.75 mm2 conductors (2 signal wires and 2 power supply wires) 2-conductor VCTF cable Communications distance 4-conductor VCTF cable High-speed Communications Mode Main line length: 100 m max. Branch line length: 3 m max. Total branch line length: 50 m max. Long-distance Communications Mode Main line length: 500 m max. Branch line length: 6 m max. Total branch line length: 120 m max. High-speed Communications Mode Main line length: 30 m max. Branch line length: 3 m max. Total branch line length: 30 m max. Long-distance Communications Mode: Flexibly branched, provided that the total length of cable is a maximum of 200 m. Special Flat Cable High-speed Communications Mode Main line length: 30 m max. Branch line length: 3 m max. Total branch line length: 30 m max. When 4-conductor VCTF cable or Special Flat Cable is used to connect fewer than 16 Slaves, the main line can be up to 100 m long and the total branch line length can be up to 50 m in High-speed Communications Mode. Long-distance Communications Mode: Flexibly branched, provided that the total length of cable is a maximum of 200 m. Ordering Information Specifications Unit type Name Communications functions CompoBus/S Master Unit CJ1 Special I/O Units No. of I/O points Max. Units mountable per CPU Unit No. of unit numbers allocated Current consumption (A) Model 5V 0.15 - Standards CJ1W-SRM21 CJ1W-SRM21 UC1, N, L, CE, 24 V 256 max. (128 inputs and 128 outputs) Remote I/O communications 40 1 or 2 (variable) 128 max. (64 inputs and 64 outputs) International Standards · The standards indicated in the "Standards" column are those current for UL, CSA, cULus, cUL, NK, and Lloyd standards and EC Directives as of the end of October 2008. (The standards are abbreviated as follows: U: UL, U1: UL Class I Division 2 Products for Hazardous Locations, C: CSA, US: cULus Class I Division 2 Products for Hazardous Locations, CU: cUL, N: NK, L: Lloyd, and CE: EC Directives. · Ask your OMRON representatives for the conditions under which the standards were met. Specifications I/O points 256 (128 inputs and 128 outputs) or 128 (64 inputs and 64 outputs) (Switch-selectable) Applicable PLC models CJ-series PLCs Unit type Special I/O Unit Allocated words * For 256 I/O: 20 words (8 for inputs, 8 for outputs, 4 for status) For 128 I/O: 10 words (4 for inputs, 4 for outputs, 2 for status) No. of mountable Master Units 40 Node address 8 addresses per node No. of connectable Slaves 32 Status information Communications Error Flags, Participation Flags * Uses Special I/O Unit Area (in CIO Area). 2 CJ1W-SRM21 CJ1W-SRM21 Part Names and Functions SRM21 SRM21 Indicators Indicates the operating status of the Master Unit and the status of communications with the Slaves. RUN ERH ERC SD RD 901 456 23 MACH No. 1 x10 78 901 456 23 78 1 2 3 4 x100 REGS ESTP DR NODE ON BS+ Rotary Switches Used to set the Master Unit's Special I/O Unit number at the CPU Unit as a 2-digit decimal number. The top switch is used to set the ten's digit and the bottom switch is used to set the one's digit. DIP Switch These pins have the following functions: Pin 1: Usable node number setting Pin 2: Communications mode Pin 3: Communications stop mode Pin 4: Slave registration function BDH BDL BS- Communications Connector Used to connect the Slave's communications power supply and communications cables. When the communications power supply is not supplied to the Slaves from communications cable, connect the communications cable BD H and BD L signal lines only. BS+ BS- Dimensions (Unit: mm) 80 (When provided connector is connected.) 65 2.7 20 SRM21 SRM21 RUN ERH ERC SD RD 901 456 23 MACH No. 1 x10 78 901 456 23 1 2 3 4 78 90 x100 REGS ESTP DR NODE ON BS+ BDH BDL BS- BS+ 2.7 BS- Refer to the CJ-series Operation Manual for details on installing the CJ1W-SRM21 CJ1W-SRM21 when it is connected in a CJ-series CPU Rack or Expansion Rack. Related Manual Cat. No. Manual Name W266 CompoBus/S Operation Manual W318 CompoBus/S SRM1 Master Control Units Operation Manual W377 CPM2C-S Programmable Controllers Operation Manual W352 CPM2A I/O Link Units Operation Manual W356 CPM2C I/O Link Units Operation Manual 3 Read and Understand This Catalog Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR. Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: · Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. · Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. · Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof. Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. PERFORMANCE DATA Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability. ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. 2009.4 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2009 All Right Reserved.