Bosch 6000 User's Guide download pdf (Page 65)

50

6000 Series Programmer's Guide

Status Write D7 D6 D5 D4 D3 D2 D1 D0 Function

(interrupt/status set/reset)

1

0

0

0

0

1

1

1

0

0

0

0

0

0

0

0

0

0

0

1

0

0

1

0

0

1

0

0

1

0

0

0

Execute the requested kill.

Tell the controller to read data from the input buffer.

Clear the controller interrupt.

Request fast status update.

Status Write D7 D6 D5 D4 D3 D2 D1 D0 Function

(interrupt enable/disable)

0 0 1 X Interrupt when output buffer has data:

1 = enable interrupt, 0 = disable interrupt

0 0 1 X Interrupt when input buffer empty :

1 = enable interrupt, 0 = disable interrupt

0 0 1 X General controller to PC-AT interrupt:

1 = enable interrupt, 0 = disable interrupt

0 0 1 X Card status updated interrupt:

1 = enable interrupt, 0 = disable interrupt

0 0 1 X Master interrupt:

1 = enable interrupt, 0 = disable interrupt

Reading and Writing to the 6000 Controller

Source code routines are provided for the 6000 Series controller on the DOS Support Disk;

these routines are proven and debugged. We strongly recommend that you use these drivers if

your application is based in a higher level language. Four languages are supported—C

(Microsoft 6.0 and Borland Turbo 2.0), BASIC (QuickBASIC 4.5), and PASCAL (Borland

Turbo). However, we understand the need in some applications to know the data transfer

protocol to and from the controller. Consequently, we have provided (below) a step-by-step

process for communicating with the controller.

The controller transfers data in Word lengths to its Read/Write registers at Address+0 and

Address+1 (the upper 8 bits of the word are at Address+0). The handshaking for the data

transfers is performed at Address+4 (Status Register). Bits are described below from 0 - 7.

Sending Commands to the Controller:

1. Wait for bit #1 (second bit) to go low at Address+4 (256-byte buffer is empty).

2. Send the data to Address+0 and Address+1 one word at a time, ending the data block

with a null character.

3. Set bits #1 and #6 at Address+4 (data waiting to be read).

Receiving Responses from the Controller:

1. Wait for bit #0 (first bit) to go high at Address+4 (output buffer has data).

2. Read a word of data from Address+0 and Address+1.

3. Repeat until bit #0 is low, or until 128 words are read.

DDE6000™

(Dynamic Data Exchange server)

TO ORDER

To order DDE6000,

contact your local

Automation

Technology Center

(ATC) or distributor.

DDE6000 is a Dynamic Data Exchange (DDE) server that you can use to facilitate

communication between a Windows application and your 6000 product family. For example,

you might use DDE6000 with a third-part factory automation software and operator interface,

such as Wonderware's In-Touch™. DDE6000 supports NetDDE, which allows operation over

a Windows for Workgroups, Windows 95, or Windows NT network.

☞

Multiple 6000 products

may be accessed

simultaneously with

the DDE6000.

The DDE6000 server, a Windows program, provides access to 6000 controller data that can be

useful to other Windows programs (DDE clients). DDE6000 supports three types of

“conversations” with a DDE client:

• Cold Link ..... Allows a client to directly request a particular data item from DDE6000.

• Hot Link....... Allows a client to be automatically updated when a particular data item

from the DDE6000 has changed.

• Warm Link.... Combination of cold link and hot link, where a client wants to be

informed of changes in the DDE6000 data without immediately receiving

the new data item.

For more information, refer to the DDE6000.HLP file on the DDE6000 diskette.

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