SC Automation Limited
| Payment Terms | T/T |
| Supply Ability | 100pcs per month |
| Delivery Time | on request |
| Packaging Details | standard carton packing |
| Manufacturers | Yokogawa |
| Interface | RS-422/RS-485 (4-wire system) |
| Connection method | Point-to-point (RS-422) Multipoint (RS-485) |
| Communication function | Half-duplex |
| Synchronization method | Start-stop synchronization |
| Transmission distance | Maximum 1200 m (total extended length) |
| Current consumption | 0.5 A |
| Weight | Approx. 0.34 kg |
| Brand Name | YOKOGAWA |
| Model Number | ALR121-S00 |
| Certification | CE |
| Place of Origin | Indonesia |
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Product Specification
| Payment Terms | T/T | Supply Ability | 100pcs per month |
| Delivery Time | on request | Packaging Details | standard carton packing |
| Manufacturers | Yokogawa | Interface | RS-422/RS-485 (4-wire system) |
| Connection method | Point-to-point (RS-422) Multipoint (RS-485) | Communication function | Half-duplex |
| Synchronization method | Start-stop synchronization | Transmission distance | Maximum 1200 m (total extended length) |
| Current consumption | 0.5 A | Weight | Approx. 0.34 kg |
| Brand Name | YOKOGAWA | Model Number | ALR121-S00 |
| Certification | CE | Place of Origin | Indonesia |
| High Light | RS422 YOKOGAWA Transmitter ，RS485 YOKOGAWA Transmitter ，ALR121-S00 | ||
Models ALR111 and ALR121 Serial Communication Modules used with a safety control station (SCS) for performing Modbus communication.
By using the SCS’s Modbus slave communication function, the data in SCS can be set or referred to by the Modbus master which is as separate system from SCS via a serial communication module. Furthermore, the subsystem
data such as from sequencers can be set or referred to via a serial communication module using SCS’s subsystem communication function.
These serial communication modules can be mounted on a safety control unit and a safety node unit.
Hardware specifications of ALR111 and ALR121 serial communication modules are as shown below. These modules are interference-free modules that have no interference with the safety loop.
Table Serial Communication Module Hardware Specifications
| Item | Specifications | |
| Model | ALR111 | ALR121 |
| Interface | RS-232C | RS-422/RS-485 (4-wire system) |
| Connection method | Point-to-point |
Point-to-point (RS-422) Multipoint (RS-485) |
| Communication function | Half-duplex | |
| Synchronization method | Start-stop synchronization | |
| Transmission speed | 1200/2400/4800/9600/19200/38400 bps | |
| Transmission code | binary | |
| Character length | 8 bits (Fixed to 8 bit on the Modbus slave communication function and the subsystem communication function) | |
| Stop bit length | 1/2 bits (Fixed to 1 bit on the subsystem communication function) | |
| Parity check | None/even/odd | |
| Lag time after data transmission | 1 ms | |
| Transmission distance | Maximum 15 m | Maximum 1200 m (total extended length) |
| Installation method | Mounted on S2SC70 , SSC60 , SSC50 , SSC57 , or SNB10D |
|
| I/O wiring | AKB131, AKB132, AKB135, AKB136 cables, etc. | Cable with 3-pair shield, AKB161, or AKB162 |
| Wiring connection | D-sub-9-pin (female × 2 ports) | Clamped with terminal block’s M4 screws (5 poles × 2 ports) |
| Communication function (*1) | Modbus slave communication function, subsystem communication function | |
| Current consumption | 0.5 A | 0.5 A |
| Weight | Approx. 0.3 kg | Approx. 0.34 kg |
*1: A unit of SCS is capable of handling multiple communication functions: however, different types of communication functions cannot be simultaneously performed on a serial communication module. It means that two ports must have identical
communication functions.
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Company Details
Business Type:
Trading Company
Year Established:
2010
Total Annual:
5000000-8000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
SC Automation Limited (hereinafter referred to as SC) was established in 2010 and is a company focused on international trade.We are committed to serving customers worldwide based on the principle of integrity. After years of experience, we have formed good cooperative relationships ... SC Automation Limited (hereinafter referred to as SC) was established in 2010 and is a company focused on international trade.We are committed to serving customers worldwide based on the principle of integrity. After years of experience, we have formed good cooperative relationships ...
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