Owner manual

Chapter 1
Introducing The Smart Transmitter Toolkit
1-2
The STT subroutine transfers this digital data between the PLC-5
processor and HART field devices:
Read
- primary variable and unit
- primary variable current
- dynamic variables and unit
- status information
Write/modify primary variable range values
Write primary variable unit
Reset configuration change flag
Set primary variable to zero
Data Highway Plus
PLC5 Processor
Workstation
You Provide STT Provides
Your Application Program
PLCresident Control Functions
STT Data Tables and
Subroutine Call
6200 Programming Software
PLC5 ladder logic subroutine
that simplifies the communication
between a PLC5 processor and
a HART field device.
HART
Field
Devices
4-20 mA Loop
1770HT1
1770HT16
Smart Transmitter Interface
RIO
What Y ou Get W ith The STT
Subroutine