Yokogawa ALR121-S51 Serial Communication Module
Manufacturer:
Yokogawa
Product No.:
ALR121-S51
Condition:
In Stock
Product Type:
Serial Communication Module
Weight:
340g
Shipping port:
Xiamen
Warranty:
12 months
UBEST – Trusted Global Automation Parts Supplier
We offer a wide range of in-stock industrial automation spare parts. All products come with a 12-month warranty and a 30-day refund for quality issues.
Hardware Specifications
| Item | Specifications |
|---|---|
| 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 speed | 1200/2400/4800/9600/19200/38400 bps |
| Transmission code | Binary |
| Character length | 8 bits (Fixed to 8 bit on Modbus slave and subsystem communication) |
| Stop bit length | 1/2 bits (Fixed to 1 bit on subsystem communication) |
| Parity check | None/even/odd |
| Lag time after data transmission | 1 ms |
| Transmission distance | Maximum 1200 m (total extended length) |
| Installation method | Mounted on SSC60, SSC50, SSC57, SSC10, or SNB10D |
| I/O wiring | AKB131, AKB132, AKB135, AKB136 cables, etc. |
| Wiring connection | D-sub-9-pin (female × 2 ports), Clamped with terminal block’s M4 screws (5 poles × 2 ports) |
| Communication function | Modbus slave communication function, subsystem communication function |
| Current consumption | 0.5 A |
| Weight | Approx. 0.34 kg |
Operating Environment
- Hardware Requirements: SSC60S, SSC60D, SSC50S, SSC50D, SSC57S, SSC57D, SSC10S, SSC10D
- Software Requirements: CFS1300 Safety Control Functions Package (for SSC60 and Vnet/IP), CFS1100 Safety Control Functions Package (for SSC50/SSC10), CFS1170 Safety Control Functions Package (for SSC57 and Vnet/IP-Upstream)
- Engineering Requirements: CHS5100 Safety System Generation and Maintenance Function Package
Installation Environment
-
Max. Number of Modules per SCS:
- Max. 2 units/SCS (Modbus slave communication function)
- Max. 4 units/SCS (Subsystem communication function)
Suffix Codes:
- -S: Standard type
- 5: No explosion protection
- 1: ISA Standard G3