Black Box 945 user manual

WATLOW Series 945

How to Use Data Communications

User's Manual

$5.00

Made in the U.S.A.

Printed on Recycled Paper

W945-SA50-9210

March, 1992

Supersedes:

W945-SA40-9119

How To Use

Data Communications

with the Watlow

Series 945

Watlow Controls, 1241 Bundy Blvd., P.O.Box 5580, Winona, MN 55987-5580, Phone: 507/454-5300, Fax: 507/452-4507

Contents

Main Contents Two Serial Hardware Interfaces and Two Software Protocols Communications Wiring How to Use Data Communications with the Watlow Series 945 Data Comm 4 How to Use Data Communications Series 945 # RS-422A RS-422A Interface Pinouts 945A-XXXX-B000 Figure 1 - RS-422A Interface, Pin Designations. RS-423A Interface Pinouts (RS-232C Compatible) 945A-XXXX-B000 RS-423A EIA-485 Interface Pinouts 945A-XXXX-D000 EIA-485 Connecting the Control and the Computer Configuration How to Set the Hardware Protocol Switches for 945A-XXXX-B000 Units Only Network Connections Parameters Setup Menu - Communications Parameters Setup Setup Menu Operation Menu 10 ASCII Char. ASCII Control Characters (Partial Set) ASCII Character Set Syntax Message Syntax Data Rules Series 945 General Message Syntax Command List ASCII Example Format XON/XOFF Protocol for RS-423A XON/XOFF "=" XON/XOFF "=" Command Example How To Start and Stop Communicating with the Series 945 and XON/XOFF 14 XON/XOFF "?" XON/XOFF "?" Command Example ANSI X3.28 Device Address ANSI X3.28 Protocol for RS-422A and EIA-485 Starting Communications in ANSI X3.28 Protocol 16 ANSI X3.28 "=" ANSI X3.28 "=" Command Example Stopping Communications in ANSI X3.28 Protocol ANSI X3.28 "?" ANSI X3.28 "?" Command Example 18 Commands "?" Command Table 5 - "?" Commands and Responses. These commands are READ ONLY. Commands Data.1 Data.2 "=" Command 20 Commands Data.1 Data.2 l Data Logging Data Logging Data Logging SPC - Statistical Process Control Table Printout SPC The Difference Between Control & Specification Limits Chart & SPC Figure 12 - Chart and SPC Printout Example ****** (Any messages concerning tchanges in he system are printed here) Error Codes NAKs and Error Codes User Responsibility Index G H I