Product Description
Analog I/O Modules for HART Communication
The SAI143-H53/STA4D-00 is an analog input module designed for HART communication in ProSafe-RS systems. It supports 4 to 20 mA current input across 16 channels, with module isolation ensuring reliable operation.
Each channel supports one HART device, and the module provides a built-in power supply for connected devices. However, only one HART device can communicate at a time due to the module's single HART modem.
HART Communication Specifications
| Function | Description |
|---|---|
| Communication Mode | Serial half-duplex, start-stop synchronization (1 start bit / 8 data bits / odd parity / 1 stop bit) |
| Applicable Standard | HART Protocol Revision 5.7 (Compatible with HART 5, 6, and 7 devices) |
| Transmission Speed | 1200 ±2 bps |
| Modulation Technique | Binary phase-continuous FSK (1 = 1200 Hz ±1%, 0 = 2200 Hz ±1%) |
| Frame Length | 5 to 267 bytes |
| Error Detection | Longitudinal/vertical parity |
| Response Time | Max. 28 characters (256.7 ms) |
| No Response Timer | 33 characters (305 ms) for primary, 41 characters (380 ms) for secondary |
| Bus Monitor | 8 characters (75 ms) |
| Response Window | 20 ms |
Model and Suffix Codes
Model: SAI143-H53/STA4D-00
Description: Analog Input Module (4 to 20 mA, 16 channels, module isolation)
Suffix Codes
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-H: With HART communication [Release: R1.02.00] (For dual-redundant pressure clamp terminal block, do not use STA4D-0 S1)
-
5: For pressure clamp terminal block or MIL cable with no explosion protection
-
3: With ISA Standard G3 and temperature range (-20 to 70 ºC)
Option Codes
-
/A4D00: *With dual-redundant pressure clamp terminal block for analog (3) [Model: STA4D-00]
*(3: When using this module in a dual-redundant configuration, order an additional module with the same specifications but without option codes.)