Dover Dow-Key Microwave MS Matrix Series User Manual

34
6 IEEE 488.2 Register model
6.1 Introduction to IEEE 488.2
The topics discussed in sections 4.2 to 4.3 are for the most part transparent to
the user during normal operation of the matrix. These sections are here mainly
for informational purpose. These sections describe a minimal register model
that is required to be able to perform a safe handshaking between the controller
and the matrix. In the matrix a status system records various conditions and
states in 2 registers. Each of the register groups is made up of several low-
level registers called Condition Registers, Event Registers, and Enable
Registers.
6.2 Condition Register
A condition register continuously monitors the state of the instrument. The bits
in the condition register are updated in real time and the bits are not latched or
buffered. This is a read-only register and bits are not cleared when you read
the register. A query of a condition register returns a decimal value which
corresponds to the binary-weighted sum of all bit set in that register.
6.3 Event Register
An event register latches the various events from the condition register. There
is no buffering in this register; while an event bit is set, subsequent events
corresponding to that bit are ignored. This is a read-only register. Once a bit is
set, it remains set until cleared by a query command (such as *CLS). A query
of this register returns a decimal value that corresponds to the binary-weighted
sum of all bits in that register.
6.4 Enable Register
An enable register defines which bits in the event register will be reported to the
Status Byte resister group. You can write to or read from an enable register. A
*CLS command will not clear the enable register but it does clear all bits in the
event resister. To enable bit in the enable register to be reported to the Statue
Byte register, you must write a decimal value that corresponds to the binary-
weighted sum of the corresponding bits.

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.