Instruction Manual

For optimum performance when directly connecting thermocouple inputs, the terminal

strips should be kept horizontal. In addition the unit should be protected from thermal

shocks whenever possible. This will minimize any temperature gradients across the

terminal strips and result in the highest accuracy.

3.1.2 ENCLOSURES

Different enclosures can be used depending on the environmental protection required.

3.1.3 DETACHABLE TERMINAL BLOCKS

WARNING - ALWAYS CHECK TERMINAL LOCATION AND

ORIENTATION

All connections except, for the AC power supply, are made on

removable terminal strips. Terminal strip removal is achieved by

pulling them directly away from the circuit board. The terminal

strips must be carefully installed in the correct position on the circuit

with all 10 pins correctly aligned.

3.2 COMMUNICATIONS SET-UP AND CONNECTIONS

The ANAFAZE 8 PID is designed for three types of serial communications: RS-

232, RS-422, and 20ma current loop. Up to 32 units can be connected on one

communication line.

3.2.1 COMMUNICATIONS PROTOCOL

The unit uses standard ASCII codes for characters. Parity is not used since the

ANAFAZE 8 PID responds to every command verifying to the host computer that the

command has been correctly received. The ASCII format is the most commonly used. It

contains one start bit, 8 data bits and one stop bit. The computer manual contains

information on how to set- up the parameters for communication. For example using an

IBM PC in BASIC the command is:

OPEN "COM1:2400,N,8,1,RS,CS,DS as #1

This statement does the following:

 opens communication port 1

 at 2400 baud

 with no parity

 1 start bit, 8 data bits, 1 stop bit

 suppresses RTS (Ready To Send)

 ignores CTS (Clear To Send)

 ignores DSR (Data Set Ready)

 as file #1.

Please see your computer manual for additional details.