
Product Description
Product Overview
- The Yokogawa ALF111-S00 S1 is a Foundation Fieldbus Communication Module designed for N-IO/FIO systems. It facilitates communication between field control stations (FCS) and Foundation Fieldbus (H1) compliant devices, such as transmitters and valve positioners, acting as a Link Active Scheduler (LAS) to manage data exchange.
Technical Specifications
- The ALF111-S00 S1 Foundation Fieldbus Communication Module has the following specifications:
| Item | Specification |
|---|---|
| Model | ALF111 |
| Interface | Foundation Fieldbus (low speed voltage mode), 4 ports (1 segment (*1) per port) |
| Transmission Speed | 31.25 kbps |
| Withstanding Voltage | From field to system: 1500 V AC/minute Between primary side and secondary side: 1500 V AC for 1 minute Between channel and channel: 1500 V AC for 1 minute |
| Bus Connection (External Connection) | Pressure clamp terminals (removable terminal block with built-in terminators that can be switched on/off) Connects with terminal board via a dedicated cable |
| Installation Method | Mounted on ANB10_, ANB11_, AFV30_, AFV40_, A2FV50_, or A2FV70_ |
| No. of Control I/O Channels (*2) | Max. 48 points/segment (Complies with high- and medium-speed scanning cycle by specifying up to 6 points of I/O points as high-speed scanning type on the ER bus) |
| No. of Fieldbus Devices | Max. 32 units per segment (*3) (ALF111 counts as one unit) (*4) |
| Communication Functions | LAS function, Clock master function |
| Dual-Redundancy | Enabled to set up two units of ALF111 installed in the annexed slots in the same node unit |
| Current Consumption | 0.5 A or less |
| Weight | Approx. 0.40 kg |
Model and Suffix/Option Codes
The ALF111-S00 S1 includes the following configuration details:
| Category | Details |
|---|---|
| Model | ALF111 Foundation Fieldbus Communication Module (N-IO/FIO) |
| Suffix Codes |
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