Dover Dow-Key Microwave MS Matrix Series User Manual

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7 Remote Operation
7.1 Introduction to SCPI
SCPI is a command structure that is based on the IEEE-488.2 specification
which Dow-key has adapted to work with GPIB, Ethernet, RS-232 and USB
controls. The matrix has internal software loaded that uses SCPI command
structure. SCPI is the abbreviation of Standard Commands for Programmable
Instruments. These commands are standard messages for the (remote) control
of programmable instruments, which are sent by the GPIB and/or Ethernet
and/or RS-232 and/or USB controller. The principal objective of SCPI is to
make the programming of a test system easier for the user. When the basic
concepts and command structure of SCPI is understood, it will be easy for the
user to write or modify a control program for the matrix.
NOTE: Not all commands for SCPI are compatible with GPIB, Ethernet,
RS-232 and USB, only the ones stated in this document.
7.2 Command Syntax Structure
[ROUTe]:SWITch<id>[:VALue] <number>|MAX
• Square brackets [ ] indicate optional keywords or parameters.
• Braces { } enclosure parameter choices with a command string
• Triangle brackets < > enclose parameters for which you must substitute a
value.
• Vertical bar | separates multiple parameter choices.
The command syntax shows most commands as a mixture of upper and lower
case letters. The upper case letters indicate the abbreviated spelling for the
command. For shorter program lines, the abbreviated form is used. For better
program readability, the long form is used. For example, in the above syntax
statement, ROUT and ROUTE are both acceptable forms. Since both upper
and/or lower case letters are acceptable, ROUTE, rout and Rout are all
acceptable. Other forms, such as RO and ROU are not acceptable and will
generate an error.
NOTE: For GPIB no ASCII termination is required, but the End Or Identify
(EOI) line shall be asserted at the end of each command.
For RS232 and USB each command must be terminated with a carriage
return (0×0D) followed by a line feed (0×0A).
e.g. ”ROUT:SWITx n\r\n”
“ ROUT:SWITx n; SWITx?\r\n”
Where “\r” stands for carriage return (0×0D) and “\n” stands for line feed
(0×0A).

Dover Dow-Key Microwave MS Matrix Series Specifications

General

Brand	Dover
Model	Dow-Key Microwave MS Matrix Series
Category	Switch
Language	English

Summary

Warranty Information

Manual Revision History

1 General Information

1.1 Introduction

Overview of Dow-Key Microwave MS, MP, CB Switch Matrix series and manual scope.

1.2 MS Matrices

1.3 MP Matrices

1.4 CB Matrices

1.5 Technical Specifications

1.6 Safety Precaution

1.7 Inspection

Details inspection procedures after unpacking and items included.

1.8 Maintenance

States no periodic maintenance is required; contact Dow-Key for repairs.

1.9 Repacking for shipment

Provides instructions for returning the matrix for repair.

2 System Layout

2.1 Front Panel Layout

Describes the front panel layout for 2U, 3U, and 4U models.

2.2 Rear Panel Layout for 2U models

2.3 Rear Panel Layout for 3U models

2.4 Rear Panel Layout for 4U models

2.5 Top View Layout

2.6 RF configuration

3 Connections

3.1 Power Connection

Covers line voltage, power cord connection, and fuse replacement.

3.2 Ground Connection

3.3 RS232 Connection

3.4 CAN Bus Connection

3.5 GPIB Control Connection

3.5.2 Interface Signals

3.5.3 Data Lines

Explains the function of GPIB data lines (DIO1-DIO8).

3.5.4 Handshake Lines

3.5.5 Interface Management Lines

Explains the function of GPIB interface management lines (ATN, EOI, IFC, REN, SRQ).

3.6 USB Port

4 Configuring the Matrix for Operation

4.1 Matrix Configuration

Explains the matrix controller's generic design and configuration data.

4.2 Dow-Key CAN bus switches

Details CAN bus switch properties, IDs, and positions.

4.3 Adding and Deleting Switches

5 Manual (LOCAL) Operation

5.1 The Touch Screen Interface

Explains powering on the matrix and using the touch screen interface.

5.2 Main Menu

5.2.1 Switching Operations

Describes sub-options within Switching Operations: Set, Current Positions, History, Save.

5.2.2 Error Operations

5.2.3 System Settings

5.2.4 Ethernet Options

5.2.5 LCD Options

5.2.6 Set RS232 Baud Rate

5.2.7 Set GPIB Address

6 IEEE 488.2 Register model

6.1 Introduction to IEEE 488.2

Introduces the register model for handshaking between controller and matrix.

6.2 Condition Register

6.3 Event Register

Explains the function of the event register.

6.4 Enable Register

Explains how the enable register defines event reporting.

6.5 The Status Byte Register

6.6 The Standard Event Register

6.7 IEEE 488.2 Common Commands

7 Remote Operation

7.1 Introduction to SCPI

Introduces SCPI as the command structure for remote control.

7.2 Command Syntax Structure

7.3 Command Separators and conventions

7.4 Common Commands

7.4.1 *CLS

7.4.2 *ESE

Explains the *ESE command for enabling event status bits.

7.4.3 *ESE?

7.4.4 *ESR?

Explains the *ESR? query to read event status register.

7.4.5 *IDN?

7.4.6 *OPC

Explains the *OPC command for operation complete status.

7.4.7 *OPC?

7.4.8 *RST

Explains the *RST command for device reset.

7.4.9 *STB?

7.4.10 *SRE

Explains the *SRE command for enabling service request.

7.4.11 *SRE?

7.4.12 *WAI

Explains the *WAI command to wait for command processing.

7.5 System Commands

7.5.1 SYST:ERR?

7.5.2 SYST:SERIALNUMBER?

7.5.3 SYST:STATUS?

7.5.4 SYST:SCREENSAVER?

7.5.5 SYST:SCREENSAVER x

Explains SYST:SCREENSAVER x for setting screen saver time.

7.5.6 SYST:GPIBADDRESS?

7.5.7 SYST:GPIBADDRESS x

Explains SYST:GPIBADDRESS x for setting GPIB address.

7.6 Switch [Module] Command Set

7.6.1 :SWITch<id>[:VALue] <number>

Explains the command to control switch position.

7.6.2 Setting switch x to position n

7.6.3 Requesting Switch x current position

Appendix A

Technical Specifications

Lists detailed technical specifications for the MP-2U18S-30-GPIB model.

Appendix B

RF Configuration

Details the RF configuration and interconnection of switches.