siemens 800 User Manual

SINUMERIK System 800 Universal Interface

Planning Guide Edition 12.95

Manufacturer Documentation

SINUMERIK System 800

Universal Interface

Planning Guide

Manufacturer Documentation

Valid for:

Control Software Version

SINUMERIK 805 2 SINUMERIK 810 T / 810 TE (GA 1) 2 SINUMERIK 810 M / 810 ME (GA 1) 2 SINUMERIK 810 G 1 SINUMERIK 810 T / 810 TE (GA 2) 2 SINUMERIK 810 M / 810 ME (GA 2) 2 SINUMERIK 820 T/ TE 2 SINUMERIK 820 M/ ME 2 SINUMERIK 810 T / 810 TE (GA 3) 1 SINUMERIK 810 M / 810 ME (GA 3) 1 SINUMERIK 820 T/ TE (GA 3) 1 SINUMERIK 820 M/ ME (GA 3) 1 SINUMERIK 840T 1 SINUMERIK 840M 1 SINUMERIK 840C 5 SINUMERIK 850 T/ TE 4 SINUMERIK 850 M/ ME 4 SINUMERIK 880 T/ TE 5 SINUMERIK 880 M/ ME 5 SINUMERIK 880 N 4

December 1995 Edition

SINUMERIK® documentation

Printing history

Brief details of this edition and previous editions are listed below. The status of each edition is shown by the code in the ”Remarks” column.

Status code in

”Remarks”

column

:

A . . . . New documentation B . . Unrevised reprint with new Order No.

C . . . . Revised edition with new status. If factual changes have been made on the page since

the last edition, this is indicated by a new edition coding in the header on that page.

Edition Order No. Remarks

10.86 E80210-T77-X-A3 Revised edition

10.88 6ZB5 410-0AQ02-0BA0 C

07.90 6ZB5 410-0AQ02-0BA1 C

07.90 6ZB5 410-0AQ02-0BA2 C

03.91 6ZB5 410-0AQ02-0AA3 C

12.95 6ZB5 410-0AQ02-0AA4 C

Other functions not described in this documentation might be executable in the control. This does not, however, represent an obligation to supply such functions with a new control or when servicing.

This publication was produced on the Siemens 5800 Office System. Subject to change without prior notice.

The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved.

©

Preface

Notes for the reader

This documentation is intended for manufacturers of machine tools with the SINUMERIK System 800. It describes data exchange with input/output devices (e.g. tape reader, tape punch, programmer, printer, magnetic tape unit, etc).

The SINUMERIK documentation is divided into three parts:

• General Documentation

• User Documentation

• Manufacturer Documentation

• Service Documentation The manufacturer documentation for the SINUMERIK System 800 controller is divided into

the following parts:

•

Instruction Manual

•

Interface Part 1: Signals Part 2: Cables and Devices

• PLC Programming Guide

• Function Blocks

• Universal Interface

• Measuring Cycles

• CL - 800 Description

You can obtain more detailed information from your Siemens representative.

1V.24 (RS232C) Interface

220 mA Current Loop Interface

3RS 422 Interface

4Interface Overview

5Adapting the Interfaces to I/O Devices

6Signal Timing for Data Transmission

7Serial Interfaces on the SINUMERIK System 800

8Connecting I/O Devices in Practice

Contents

Page

1 V.24 (RS232) Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 V.24 (RS232C) interface lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.3 Polarity and voltage level assignment of V.24 interface signals . . . . . . . 1-3

1.4 V.24 drivers and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.4.1 V.24 drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.4.2 V.24 receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.5 Interface link to I/O device for V.24 . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.6 Length of the transmission line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

2 20 mA Current Loop Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 20 mA signal level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.3 Interface link to I/O device for 20 mA . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2.3.1 Duplex interface active at SINUMERIK end . . . . . . . . . . . . . . . . . . . . . 2-3

2.3.2 Duplex interface passive at the SINUMERIK end . . . . . . . . . . . . . . . . . 2-4

2.4 Length of the transmission line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

3 RS 422 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 Polarity and voltage level assignment of the RS 422 interface . . . . . . . . 3-2

3.3 RS 422 drivers and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.3.1 RS 422 driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.3.2 RS 422 receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.4 Interface link to I/O device for RS 422 . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3.5 Length of the transmission line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3.6 Level conversion from V.24 to RS 422 . . . . . . . . . . . . . . . . . . . . . . . . 3-4

4 Interface Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1 Pin assignments of the data interfaces . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.1 Pin assignments of the V.24/20 mA universal interface . . . . . . . . . . . . 4-1

4.1.2 Pin assignments of the RS 422 interface . . . . . . . . . . . . . . . . . . . . . . 4-2

4.2 Explanation of signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4.3 Format of a serially transmitted character . . . . . . . . . . . . . . . . . . . . . 4-3

4.4 Block diagram of the data interfaces . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

4.4.1 Block diagram of a V.24/20 mA universal interface . . . . . . . . . . . . . . . 4-4

4.4.2 Block diagram of an RS 422 interface . . . . . . . . . . . . . . . . . . . . . . . . 4-5

5 Adapting the Interfaces to I/O Devices . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 Setting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.1 Explanation of the setting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5.3 Notes on the format of special characters . . . . . . . . . . . . . . . . . . . . . . 5-6

5.4 Notes on using the EIA code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

6 Signal Timing for Data Transmission . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1 Signal timing with line-controlled devices . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1.1 Data input (I/O device to the NC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1.2 Data output (NC to I/O device) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6.2 Signal timing with character-controlled devices . . . . . . . . . . . . . . . . . . 6-4

6.2.1 Data input (I/O device to NC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6.2.2 Data output (NC to I/O device) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

7 Serial Interfaces on the SINUMERIK System 800 . . . . . . . . . . . . . . 7-1

7.1 Interfaces on the various controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1.1 SINUMERIK 805 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1.2 SINUMERIK 810 GA1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1.3 SINUMERIK 810GA2/820GA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.1.4 SINUMERIK 810 GA3/820 GA3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.1.5 SINUMERIK 840 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.1.6 SINUMERIK 850 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

7.1.7 SINUMERIK 880 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

7.2 Setting data for the various controls . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

8 Connecting I/O Devices in Practice . . . . . . . . . . . . . . . . . . . . . . . . 8-1

8.1 Device setting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

8.2 Device connection data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

8.2.1 Siemens PT 80 page printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

8.2.2 Siemens PT 88 printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

8.2.3 SINUMERIK T40 and T50 tape readers . . . . . . . . . . . . . . . . . . . . . . . 8-6

8.2.4 SINUMERIK T60 tape reader (hand-held) . . . . . . . . . . . . . . . . . . . . . . 8-7

8.2.5 Sanyo M2502U cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

8.2.6 ASR3320/3WE teletype . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

8.2.7 Facit 4040, 4042 punch/tape reader combination. . . . . . . . . . . . . . . . . 8-9

8.2.8 Facit 4070 punch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

8.2.9 Facit 4030 tape reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

8.2.10 Facit N 1000 NC Walk-Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

8.2.11 Facit N 1100 NC Walk-Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11

8.2.12 Siemens DSG 3.5 floppy disk drive . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11

8.2.13 Siemens DSG 2S floppy disk drive . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

8.2.14 Sommer MDC-3 SNC cartridge drive terminal . . . . . . . . . . . . . . . . . . . 8-12

8.2.15 Tekelec FDS 300, FDS 500 floppy disk drive . . . . . . . . . . . . . . . . . . . 8-13

8.2.16 Tekelec Magnetic Tape Cartridge Drive, Model CDS 1.58 . . . . . . . . . . 8-13

8.2.17 CAN NC Recorder FD/FH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14

8.2.18 GNT 7101 NC data Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14

8.2.19 GNT 4604 tape reader/punch station . . . . . . . . . . . . . . . . . . . . . . . . . 8-15

8.2.20 SINUMERIK WS 800, programming workstation . . . . . . . . . . . . . . . . . 8-15

8.2.21 SINUMERIK WS 800 A, programming workstation . . . . . . . . . . . . . . . 8-16

8.2.22 SIMATIC PG 675/685/635 programmer (PG IN) . . . . . . . . . . . . . . . . . . 8-16

8.2.23 SIMATIC 750 programmer (PC IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17

8.2.24 SINUMERIK System 800, RS 232 C, NC-NC link . . . . . . . . . . . . . . . . 8-17

8.2.25 SINUMERIK T30 tape reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18

8.2.26 Siemens T10 and T20 tape reader . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18

8.2.27 Siemens PD ... PG programming workstation . . . . . . . . . . . . . . . . . . . 8-19

8.2.28 SIMATIC PG 670/675/685/635/750 programmer . . . . . . . . . . . . . . . . . 8-20

8.2.29 SIMATIC PG 750 programmer (PLC progamming) . . . . . . . . . . . . . . . . 8-21

8.2.30 SIMATIC PG 615 programmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22

8.3 Ordering data of the connecting cables . . . . . . . . . . . . . . . . . . . . . . . 8-23

8.4 Device cable diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25

10.88 1 V.24 (RS232C) Interface

1.1 General notes

1 V.24 (RS 232 C) Interface

1.1 General notes

The V.24 interfaces of the SINUMERIK System 800 contain V.24 receivers and V.24 senders, conforming to DIN 66020.

DIN 66020 defines the interface between a DTE (data terminal equipment) and a DCE (data circuit terminating equipment). It is based on recommendations V.24 and V.28 of the CCITT, which were derived from the American EIA Standard RS 232.

The interfaces also conform to VDI guideline 2880, which specifies process and data traffic of programmable controllers.

The interface signals used in SINUMERIK System 800 are a subset of V.24 or RS 232 standard signals and therefore possess the same electrical characteristics.

1.2 V.24 (RS232C) interface lines

In terms of the DIN standard, SINUMERIK is regarded as a DTE (data terminal equipment). SINUMERIK – DTE

Transmission line – DCE I/O devices – DTE

The abbreviations E1, E2, D1, D2, S1.2, S2, M1, M2 refer to DIN 66020, the abbreviations 101 to 108.2 refer to CCITT (V.24).

Ground lines

E1: Protective Ground

(101)

E2: Signal Ground

(102) This is the common return cable for all interface lines (except E1).

1 V.24 (RS232C) Interface 10.88

1.2 V.24 interface lines

Data lines

D1: T

ransmitted Data (103 - TxD) On this line data is transmitted from the DTE to the DCE. Quiescent state is logic ''High''.

D2: R

eceived Data (104 - RxD) On this line data is transmitted to the DTE from the DCE. Quiescent state is logic ''High''.

Control lines

S1.2: D

ata Terminal Ready (108/2 - DTR) The DTE signals to the DCE that it is ready for data transmission.

S2: R

equest to Send (105 - RTS) The DTE controls the send part of the data channel of the DCE.

Message lines

M1: D

ata Set Ready (107 – DSR) The DCE signals to the DTE whether or not it is ready for transmission.

M2: C

lear to Send (106 – CTS) The DCE signals to the DTE whether or not it is ready to send data signals through the data channel.

1-2

SINUMERIK System 800, (PJ)

10.88 1 V.24 (RS232C) Interface Lines

1.3 Polarity and voltage level assignment of V.24 interface signals

Data linesV

+15 V

+12 V

Logical ''L''

+3 V

0 V

–3 V

Logical ''H''

–12 V –15 V

t

Control linesV

+15 V +12 V

''On'' state

+3 V

0 V

–3 V

t

''Off'' state

–12 V –15 V

Signal level of SINUMERIK interfaces: ±12 V All signal levels refer to the signal ground E2 (102). Within the transition range (+3 to –3 V) the signal state is undefined.

(Hysteresis range of the receiver circuits 75189 A)

1 V.24 (RS232C) Interface 10.88

1.4 V.24 drivers and receivers

1.4.1 V.24 drivers

The V.24 output signals *TxD, RTS and DTR are generated in the V.24 driver block 75188 from the TTL signals of the USART 8251A.

75 188

TTL level

+12 V

&

0 V

–12 V

V.24 level

Data of circuit 75188 Max. supply voltage V

Max. output current (current limited) I Operating voltage and V.24 level V

± 15 V

cc

10 mA

o

± 12 V

cc

1.4.2 V.24 receivers

The V.24 input signals * RxD, CTS and DSR are put onto the receiver circuits 75189 after passing through an RC low-pass filter.

V

c

V.24 level

3904.7 k

Data of circuit 75189A Max. input voltage V

cc

Input resistance 390

± 30 V

75 189 A

TTL level

SINUMERIK System 800, (PJ)

07.90 1 V.24 (RS232C) Interface

1.5 Interface link to I/O device for V.24

SINUMERIK

DTE DCE

* T x D

* R x D

RTS

CTS

DSR

2

O

3

O

4

O

5

O

6

O

Transmitted data D1 (103)

Received data D2 (104)

Request to send S2 (105)

Clear to send M2 (106)

Data set ready M1 (107)

20

No device

DTE

3

O

* R x D

2

5

4

O

* T x D

CTS

RTS

DTR

MEXT

O

20

7

1

Data terminal ready S1.2(108.2)

Signal ground E2 (102)

Protective ground E1 (101)

6

7

DSR

O

G

O

1

O

In all signal names and directions, the SINUMERIK is taken to be a DTE. Which of the available control and message lines are used will depend on the I/O device. In

the simplest case, lines E2 and D1 suffice for a receiving device (printer, punch) or E2 and D2 for a sending device (reader). The specification of an I/O device determines how it is connected.

In the interface link diagram, a device is assumed to comply with the RS232C standard. The interfaces conform to VDI guideline 2880 with SINUMERIK as a DTE. If it is linked to an I/O device which is also wired as a DTE, the appropriate lines must be crossed in the cable (sender with receiver).

1 V.24 (RS232C) Interface 10.88

1.5 Interface link to I/O device for V.24

Some of the interfaces contain both the V.24 signals and the signals for 20 mA current loop operation. A V.24 sender and a 20 mA sender may not be connected to a SINUMERIK interface at the same time.

As pins 10, 12, 13, 14, 16, 19, 21 and 24 are permanently reserved for

the 20 mA interface at the SINUMERIK end, it is important to make sure

that they are not connected to the I/O device in V.24 mode.

The interface is not set to V.24 or 20 mA operation by jumpers but by the pin assignments in the cable plug.

1.6 Length of the transmission line

The maximum cable length for V.24 transmission is 30 m.

END OF SECTION

1-6

SINUMERIK System 800, (PJ)

10.88 2 20 mA Current Loop Interface

2.1 General notes

2 20 mA Current Loop Interface

2.1 General notes

The 20 mA interface is configured to VDI guideline 2880 as a duplex interface with two pairs of lines. At the SINUMERIK end it can be operated as an active or passive interface with the available sources of current by changing the pin assignments in the cable connector. This interface is also often referred to as a TTY interface.

The following is equivalent in V.24 and 20 mA interfaces (except the signal level):

20 mA

Signal V.24

+ –

Transmitted data

Received data

In the signal designations, the SINUMERIK is taken to be a DTE.

D1 D2

TTY2 TTY4

TTY1 TTY3

2.2 20 mA signal level

In the 20 mA interface, unlike the V.24 interface, information is not transmitted by the voltage level but by impressed current.

Logical ”L”: I=0 Logical ”H”: I=20 mA

Level 1 Signal 20 mA±30 %

(max. open-circuit voltage 30 V)

0 signal 0 mA to 2 mA

Voltage for current loop source at SINUMERIK =12 V

I=20 mA

I

Logical ”H” ( 0 V )

Logical ”L”

I= 0

(12 V)

t

2 20 mA Current Loop Interface 10.88

2.3 Interface link to I/O device for 20 mA

20 mA interfaces are duplex interfaces with two pairs of lines. They can be operated as active or passive interfaces at the SINUMERIK end.

• Active interface: SINUMERIK supplies the 20 mA line current.

• Passive interface: The peripheral unit supplies the 20 mA line current.

The interface is set to ''active'' or ''passive'' at the SINUMERIK end by the wiring in the cable connector not by jumper setting on the module.

The line current should always be checked when the loop is closed (approx. 20 mA). Refer also to Section 1.5.

2-2

SINUMERIK System 800, (PJ)

07.90 2 20 mA Current Loop Interface

2.3.1 Duplex interface

2.3.1 Duplex interface Active at SINUMERIK end

SINUMERIK

DTE DCE

0 V (R)

TTY 3

–

+

TTY 4

R 20 mA

0 V (T)

TTY 1

–

O

24

14

13

16

21

19

Received data –

Received data +

19

10

I/O device

DTE

O

+

TTY 2

T 20 mA

O

10

12

1

Transmitted data –

Transmitted data +

14

13

O

1

O

2 20 mA Current Loop Interface 10.88

2.3.2 Duplex interface

2.3.2 Duplex interface Passive at the SINUMERIK end

SINUMERIK

DTE DCE

24

O

–

+

TTY 3

TTY 4

O

14

13

16

21

Received data –

Received data +

O

Transmitted data +

–

TTY 1

O

19

12

10

24

21

I/O device

DTE

O

–

O

+

O

+

TTY 2

O

10

12

1

Transmitted data –

16

14

13

O

1

O

In all signal names and directions, the SINUMERIK is taken to be a DTE. The specification of the I/O device determines how it is connected. In the interface link diagram, the I/O device is assumed to comply with the VDI 2880

specification.

2.4 Length of the transmission line

The maximum cable length for the 20 mA current loop interface is 1 km.

–

+

2-4

END OF SECTION

SINUMERIK System 800, (PJ)

10.88 3 RS 422 Interface

3.1 General notes

3 RS 422 Interface

3.1 General notes

The function of the signals in the RS 422 interface is identical to those of the V.24 interface. However, instead of the V.24 signal level, transmission is via two-wire cables using differential drivers and receivers.

The RS 422 interface combines the advantages of the V.24 interface (modem capability by control signals) with those of the 20 mA interface (large transmission distances).

The following signals are the same for the V.24 interface and the RS 422 interface (except signal level):

Data signals

Signal V.24 RS 422

Transmitted data Receive data

Control signals

Signal V.24 RS 422

Data terminal ready Request to send Data set ready Clear to send

D1 D2

S1.2

S2 M1 M2

TxD

RxD

DTR RTS DSR CTS

3 RS 422 Interface 10.88

3.2 Polarity and voltage level assignment of the RS 422 interface

V

5 V

Logical ”H”

2.5 V

0.5 V 0 V

VOH 2.5 V

1.5 V

VOL 0.5 V

Logical ”L”

V

min.

=2V

V

max.

=5V

t

V

Output Y

V

min.

=2V

Output Z

t

The voltage levels refer to the reference voltage of the driver circuit AM 26 LS 31. The voltage between the differential lines is

min max

= 2 V = 5 V

SINUMERIK System 800, (PJ)

V V

3-2

10.88 3 RS 422 Interface

3.3.1 RS 422 drivers

3.3 RS 422 drivers and receivers

3.3.1 RS 422 drivers

The RS 422 output signals are generated from the TTL signals of the USART 8251 via the AM 26 LS 31 line drivers.

TTL level

Data of the AM 26 LS 31 circuit

cc oL oH

= 5 V = 0.5 V = 2.5 V

AM 26 LS 31

Supply voltage V Max. output voltage V Min. output voltage V Differential voltage 2 ... 5 V

RS 422 level

Z Y

3.3.2 RS 422 receivers

The RS 422 input signals are converted to TTL signals via the AM 26 LS 33 line receivers.

150

RS 422 level

AM 26 LS 33

Data of the AM 26 LS 33 circuit Supply voltage V

= 5 V

cc

Input parallel resistance 150 Ohm

Differential operation voltage 2 ... 5 V

TTL level

3 RS 422 Interface 07.90

3.4 Interface link to I/O device for RS 422

SINUMERIK

DTE DCE

2

* T x D

T x D

* R x D

R x D

R S

4 2

* RTS

2 s

i g n

* CTS

a l s

* DSR

* DTR

RTS

CTS

DSR

DTR

O

15

O

3

O

16

O

4

O

17

O

5

O

18

O

6

O

19

O

20

O

8

O

1

O

Transmitted data D1 (103)

Received data D2 (104)

Request to send S2 (105)

Clear to send M2 (106)

Data set ready M1 (107)

Data terminal ready S1.2 (108.2)

Protective ground E1 (101)

I/O device

DTE

3

O

16

O

2

O

15

O

5

O

18

O

4

O

17

O

20

O

8

O

6

O

19

O

1

* R x D

R x D

* T x D

T x D

CTS

* CTS

RTS

* RTS

DTS

* DTR

DSR

* DSR

O

In all signal names and directions, the SINUMERIK is taken to be a DTE. Which of the control and message lines are used will depend on the I/O device. The speci-

fication I/O device peripheral unit determines how it is connected. In the interface link diagram, a device is assumed to comply with the SINUMERIK specifica-

tion. The RS 422 interface is on a special connector.

3.5 Length of the transmission line

The maximum cable length for RS 422 transmission is 1 km.

3.6 Level conversion from V.24 to RS 422

With the SINUMERIK System 800 the V.24 level of the V.24 interfaces can be converted into a RS 422 level with a special cable. The converter electronics are integrated into the specific SINUMERIK cable connector (housing of fibre glass conductor). The adjustable interfaces are listed in Section 7.1 corresponding to the controls.

END OF SECTION

3-4

SINUMERIK System 800, (PJ)

10.88 4 Interface Overview

4.1 Pin assignments of the data interfaces

4 Interface Overview

4.1 Pin assignments of the data interfaces

4.1.1 Pin assignments on the V.24/20 mA universal interface

D-Sub, 25-pin, socket on SINUMERIK.

Pin Signal name Interface Signal name to DIN 66020

SINUMERIK assignment VDI 2880

(English from CCITT recommendation) (referring to SINUMERIK as a DTE)

1 Protective ground E1 (101) 2 *TxD V.24 Transmitted data D1 (103) 3 *RxD V.24 Received data D2 (104) 4 RTS V.24 Request to send S2 (105) 5 CTS V.24 Clear to send M2 (106) 6 DSR V.24 Data set ready M1 (107) 7 MEXT V.24 Signal ground E2 (102) 8

9 10 TTY2 20 mA Transmitted data+ 11 12 T 20 mA 20 mA Transmit source 13 TTY4 20 mA Received data + 14 TTY3 20 mA Received data – 15 16 R 20 mA 20 mA Receive source 17 18 19 TTY1 20 mA Transmitted data – 20 DTR V.24 Data terminal ready S1.2 (108.2) 21 0V (T) 20 mA Current return 22 23 24 0V (R) 20 mA Current return 25

4 Interface Overview 10.88

4.1.2 Pin assignments of the RS 422 interface

D-Sub, 25-pin, socket on SINUMERIK

Pin Signal name Interface Signal name to DIN 66020

SINUMERIK assignment (English from CCITT recommendation)

(referring to SINUMERIK as a DTE)

1 Protective ground E1 (101) 2 *TxD RS 422 Transmitted data D1 (103) 3 *RxD RS 422 Received data D2 (104) 4 RTS RS 422 Request to send S2 (105) 5 CTS RS 422 Clear to send M2 (106) 6 DSR RS 422 Data set ready M1 (107) 7 8 *DTR RS 422 Data terminal ready S1.2 (108.2)

9 10 11 12 13 14 15 TxD RS 422 Transmitted data D1 (103) 16 RxD RS 422 Received data D2 (104) 17 *RTS RS 422 Request to send S2 (105) 18 *CTS RS 422 Clear to send M2 (106) 19 *DSR RS 422 Data set ready M1 (107) 20 DTR RS 422 Data terminal ready S1.2 (108.2) 21 22 23 24 25

SINUMERIK System 800, (PJ)

07.90 4 Interface Overview

4.2 Explanation of signal names

CTS Clear to Send DSR Data Set Ready DTR Data Terminal Ready MEXT External Ground RTS Request to Send RxD Receive Data V.24 R20mA Receive Source 20 mA TxD Transmit Data V.24 TTY1 Teletype (– 20 mA) Transmit Data TTY2 Teletype (+20 mA) Transmit Data TTY3 Teletype (– 20 mA) Receive Data TTY4 Teletype (+20 mA) Receive Data T20mA Transmit Source 20 mA 0V(R) 0V – Receive 20 mA 0V(T) 0V – Transmit 20 mA

4.3 Format of a serially transmitted character

T x D R x D

Quiescent state

Start element

21

Data bits

6 87543

Stop elements

Parity bit (optional)

In the SINUMERIK universal interface the 8th bit of a character, which is normally the parity bit, is designated as 8th data bit.

The parity bit is an optional 9th bit added to an ASCII character on even, and to an EIA character on odd bit combinations. The 8th bit is always part of the data.

An additional parity bit (9th. bit) may be generated via setting data if desired for adaptation to certain I/O devices.

4 Interface Overview 10.88

4.4 Block diagrams of the data interfaces

4.4.1 Block diagram of V.24/20 mA universal interface

Data bus DB

Select (1)

Baud rate generator

DTRRTS

V.24 driver

RTS DTR * T x D

V.24 Output

Scaler

T x C

R x C

U SART

20 mA driver

TTY 2 TTY 1 TTY 4 TTY 3 CTS DSR

20 mA Transmit

1)

20 mA receiver

Duplex Receive

CPU frequency

R x DT x D

* R x D

V.24 receiver

V.24 Input

DSRCTS

R x RDYT x RDY

1

IR

Interrupt

1)

USART = Universal Synchronous Asynchronous Receiver Transmitter

Its tasks are:

• Conversion of 8 bits parallel to 8 bits serial

• Transmitting and receiving at different baud rates (possibly simultaneously)

• Error detection

• Define and check parity

4-4

SINUMERIK System 800, (PJ)

07.90 4 Interface Overview

4.4.2 Block diagram of an RS 422 interface

Data bus DB

Select (1)

Baud rate generator

T x C

R x C

U SART

RTS DTR T x D DSRCTSR x D

RS 422

driver

RTS * RTS DTR

* DTR

* Tx D

Tx D

RS 422 Output RS 422 Input

Scaler

* R x D

CPU frequency

RS 422 receiver

R x D CTS

1

* CTS DSR *DSR

IR

Interrupt

END OF SECTION

10.88 5 Adapting the Interfaces to I/O Devices

5.1 General notes

5 Adapting the Interfaces to I/O Devices

5.1 General notes

Peripheral devices are subdivided according to the type of data transmission:

• Line-controlled devices: – Control via the control lines DSR, DTR, CTS, RTS

• Uncontrolled devices: – Asynchronous transmission without control

• Character-controlled devices: – Control using control characters on the data lines

Each interface and data direction is defined at the SINUMERIK end for the I/O device using setting data (see selection tables). The control lines are activated by connecting them.

On startup the default values of the machine data and setting data adapt the interface to the Siemens PT 80 page printer (universal device).

5 Adapting the Interfaces to I/O Devices 03.91

5.2 Setting data

SINUMERIK System 800 has one set of 8 bytes per interface for adapting the I/O devices. The input and output directions are set separately.

The setting of the EIA code for special characters ”@”, ”:”, ”=”, ”[”, ”]” and ”,” and the definition for the character ”End of transmission” is entered in 7 additional bytes for two interfaces.

Byte

No.

1

2

3

4

5

6

7

8

Function

Bit

7 6 5 4 3 2 1 0

Device coding - input-

Transmission format - input -

Type of

parity

Parity

bit

Baud rateStop elements

Device coding - output -

Transmission format - output -

Stop elements

Type of

parity

Xon character (e.g. DC1 = 11

Xoff character (e.g. DC3 = 93

Parity

bit

hex

Baud rate

)

Special bits

Output

without

1st Xon

character

Program

start

with LF

End of

block

CR LF

Output in

EIA

code

Stop at

character

end of

trans-

mission

Evaluate

data set

ready

DSR

Output

without

leader

and

trailer

Delete

program

without

reorgan.

Read-in

progr. of

systems

3, 8

Switch off

time

watchdog

9 10 11 12 13

14 15

EIA code for ”@” (e.g. 6D

EIA code for ”:” (e.g. 46

Code for ”End of transmission” (e.g. ETX=03

EIA Code for ”=” (e.g. 1C

EIA code for ”[” EIA code for ”]”

EIA code for ”,”

hex

Hex

)

in ISO)

hex

)

SINUMERIK System 800, (PJ)