1. General Introduction
ALF111 FOUNDATIO fieldbus Communication Module installed on Field Control Unit or ESB bus node unit for signal communication between Field Control Unit and the fieldbus protocol devices such as transmitters and valve positioners and etc. Dual-redundant communication is available by installing two communication modules on the same unit.
2. Standard Specification
Main Characters | Description |
Interface | FOUNDATION fieldbus (low speed voltage mode) 4 ports (1 segment per port) |
Transmission speed | 31.25 kbps |
Withstanding voltage | From field to system: 1500 V AC/minute |
Bus connection (external connection) | Pressure clamp terminals , with terminal board via a dedicated cable |
No. of control I/O channels | Max. 48 points/segment |
No. of fieldbus devices | Max. 32 units per segment |
Communication functions | LAS function, Clock master function |
Dual-redundancy | Set up two units installed in the annexed slots of the same node unit. |
Current consumption | 0.5 A or less |
3. Mode Selection of ALF111 Foundatio Fieldbus Communication Module
Model | Suffix Codes | Description | |||
ALF111 | FOUNDATION fieldbus Communication Module | ||||
-S | Standard type | ||||
5 | Standard type with no explosion protection | ||||
E | Standard type with explosion protection | ||||
0 | Basic type | ||||
1 | With ISA Standard G3 option | ||||
Option Code | /F9S00 | With pressure clamp terminal block for Fieldbus [Model: ATF9S-00] |
4.Typical Order Codes
Typical order codes | Remarks |
ALF111-S50 | Basic type |
ALF111-S51 | With ISA Standard G3 option |
5. System Configuration
6. External Dimension
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