Dover Dow-Key Microwave MS Matrix Series User Manual

44
Remote Operation
7.4.7 *OPC?
Syntax
*OPC?
Description
This query returns an ASCII character “1” when all pending operations have
been finished.
Result
ASCII character “1”.
Possible error codes
None
Example 1
*OPC?
Result
“1”
Example 2
:SWIT1 4; SWIT2 4; *OPC?
Result
“0”
Timing
In example 2 the matrix did not have the time to execute the command. Hence
a “0” is returned. A subsequent *OPC? will return a “1” as shown in example 1.
The timing to execute a command depends on the length of the command (in
case of concatenated commands). In case of switching commands like on
example 2, the controller will first command each switch to set its new position,
then query each switch to ensure that the positions are closed and finally
respond with a “1” to the *OPC? query.
As a rule of thumb electromechanical switches require approximately 10-15ms
to switch position. But the *OPC? query will return a “1” only after the switches
have not only changed its positions, but rather also confirmed its position. So it
is safe to consider some safety margin and expect a response of “1” after about
70ms per switch. As an example if 2 switches are commanded, wait about
140ms before issuing an *OPC? query that will return a “1”.

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.