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 ºRemarksº column.

Status code in ºRemarksº 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.

© Siemens AG 1986, 1988, 1990, 1991, 1995 All Rights 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.

V.24 (RS232C) Interface		1

20 mA Current Loop Interface		2

RS 422 Interface		3

Interface Overview		4

Adapting the Interfaces to I/O Devices		5

Signal Timing for Data Transmission		6

Serial Interfaces on the SINUMERIK System 800		7

Connecting I/O Devices in Practice		8

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

1.1General 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.

1.2V.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).

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

1-1

SINUMERIK System 800, (PJ)

1 V.24 (RS232C) Interface	10.88
1.2 V.24 interface lines

Data lines

D1:	Transmitted Data
	(103 - TxD)
	On this line data is transmitted from the DTE to the DCE.
	Quiescent state is logic ©©High©©.
D2:	Received Data
	(104 - RxD)
	On this line data is transmitted to the DTE from the DCE.
	Quiescent state is logic ©©High©©.
Control lines
S1.2:	Data Terminal Ready
	(108/2 - DTR)
	The DTE signals to the DCE that it is ready for data transmission.
S2:	Request to Send
	(105 - RTS)
	The DTE controls the send part of the data channel of the DCE.
Message lines
M1:	Data Set Ready
	(107 ± DSR)
	The DCE signals to the DTE whether or not it is ready for transmission.
M2:	Clear 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	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

SINUMERIK System 800, (PJ)

10.88

1 V.24 (RS232C) Interface Lines

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

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

V		Data lines
+15	V
+12	V
		Logical ©©L©©
+3	V
0 V		t
±3 V
		Logical ©©H©©
±12 V
±15 V
V		Control lines
+15	V
+12	V

©©On©© state

+3 V

0 V

t

±3 V

©©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)

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

1-3

SINUMERIK System 800, (PJ)

1 V.24 (RS232C) Interface

10.88

1.4 V.24 drivers and receivers

1.4V.24 drivers and receivers

1.4.1V.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.

				TTL level						Data of circuit 75188
											Vcc ± 15 V
										Max. supply voltage
									+12 V
75 188	&									Max. output current
									0 V	(current limited)	Io 10 mA
										Operating voltage	Vcc± 12 V
									±12 V	and V.24 level
			V.24 level

1.4.2V.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.

Vc

V.24 level

Data of circuit 75189A

4.7 k

390

Max. input voltage

Vcc ± 30 V

Input resistance

390

75 189 A

TTL level

1-4	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

SINUMERIK System 800, (PJ)

07.90	1 V.24 (RS232C) Interface
1.5	Interface link to I/O device for V.24

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

SINUMERIK						No device
DTE				DCE		DTE
	2		Transmitted data		3
* T x D	O				O	* R x D
			D1	(103)
	3		Received data		2
* R x D	O				O	* T x D
			D2	(104)
	4		Request to send		5
RTS	O				O	CTS
			S2	(105)
CTS	5		Clear to send		4
	O				O	RTS
			M2	(106)
	6		Data set ready		20
	O				O
DSR			M1	(107)		DTR
DTR	20		Data terminal ready		6	DSR
	O				O
			S1.2(108.2)
	7		Signal ground		7
MEXT	O				O	G
			E2	(102)
	1	Protective ground			1
	O	E1	(101)		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).

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

1-5

SINUMERIK System 800, (PJ)

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.

1.6Length of the transmission line

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

END OF SECTION

1-6	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

SINUMERIK System 800, (PJ)

10.88

2 20 mA Current Loop Interface

2.1 General notes

2 20 mA Current Loop Interface

2.1General 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	D1	TTY2	TTY1
	Received data	D2	TTY4	TTY3

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

2.220 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.

I					Logical ºLº:			I=0
			Logical ºHº		Logical ºHº:			I=20 mA
					Level 1 Signal			20 mA±30 %
			( 0 V )
I=20 mA								(max. open-circuit voltage
								30 V)
								0 signal 0 mA to 2 mA
					Voltage for current loop source at
					SINUMERIK =12 V
					Logical ºLº
I= 0
								t
					(12 V)

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

2-1

SINUMERIK System 800, (PJ)

2 20 mA Current Loop Interface

10.88

2.3 Interface link to I/O device for 20 mA

2.3Interface 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	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

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)	24	Received data ±
		O
		14	Received data +
	TTY 3	O
	±
	+	13
	TTY 4
		O
	R 20 mA	16
		O
	0 V (T)	21
		O
	TTY 1	O19
	±
	+	10	Transmitted data ±
	TTY 2	O
	T 20 mA	12	Transmitted data +
		O
		O1

I/O device

DTE

19 O

10 O

14 O

13

O

1 O

© Siemens AG 1990	All Rights Reserved 6ZB5 410-0AQ02	2-3
SINUMERIK System	800, (PJ)

2 20 mA Current Loop Interface	10.88
2.3.2 Duplex interface

2.3.2 Duplex interface Passive at the SINUMERIK end

	SINUMERIK				I/O device
	DTE		DCE		DTE
				21 O
		O24		19	O
		14		10	±
			Received data ±
	TTY 3	O			O
	±
					+
	+	13	Received data +	12
	TTY 4
		O			O
		O16
		21
		O
	±	19	Transmitted data +	24	O
		O
	TTY 1
	+	10		14	±
			Transmitted data ±		O
	TTY 2	O
		12			+
				13	O
		O
		1		16	O
		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.

2.4Length of the transmission line

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

END OF SECTION

2-4	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

SINUMERIK System 800, (PJ)

10.88

3 RS 422 Interface

3.1 General notes

3 RS 422 Interface

3.1General 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	D1	TxD
	Receive data	D2	RxD
Control signals
	Signal	V.24	RS 422
	Data terminal ready	S1.2	DTR
	Request to send	S2	RTS
	Data set ready	M1	DSR
	Clear to send	M2	CTS

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

3-1

SINUMERIK System 800, (PJ)

3 RS 422 Interface

10.88

3.2 Polarity and voltage level assignment of the RS 422 interface

3.2Polarity and voltage level assignment of the RS 422 interface

	V
	5 V
		Logical ºHº
	2.5 V
		Vmin.	Vmax.
		=2V	=5V
	0.5 V	Logical ºLº
	0 V		t

V

Output Y

VOH 2.5 V

1.5 V

Vmin.

=2V

VOL 0.5 V

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

Vmin	=	2 V
Vmax	=	5 V

3-2	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02
	SINUMERIK System 800, (PJ)

10.88

3 RS 422 Interface

3.3.1 RS 422 drivers

3.3RS 422 drivers and receivers

3.3.1RS 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
					Supply voltage	Vcc	=	5 V
AM 26 LS 31					Max. output voltage	VoL	=	0.5 V
					Min. output voltage	VoH	=	2.5 V
					Differential voltage	2	...	5 V

RS 422 level

ZY

3.3.2RS 422 receivers

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

150

Data of the AM 26 LS 33 circuit

RS 422 level

Vcc = 5 V

Supply voltage

Input parallel

AM 26 LS 33

resistance

150 Ohm

Differential operation

voltage

2 ... 5 V

TTL level

© Siemens AG 1990	All Rights Reserved 6ZB5 410-0AQ02	3-3
SINUMERIK System	800, (PJ)

3 RS 422 Interface

07.90

3.4 Interface link to I/O device for RS 422

3.4Interface link to I/O device for RS 422

SINUMERIK
			I/O device
DTE	DCE		DTE

		* T x D
		T x D
		* R x D
		R x D
	R
	S	RTS
	4
	2	* RTS
	2
	s	CTS
	i
	g
	n	* CTS
	a
	l

sDSR

*DSR

DTR

*DTR

2			Transmitted data
O
			D1	(103)
15
O
3			Received data
O
			D2	(104)
16
O
4			Request to send
O
			S2	(105)
17
O
5			Clear to send
O
			M2	(106)

18

O

	6	Data set ready
	O
		M1	(107)
	19
	O

	20							Data terminal ready
O
								S1.2	(108.2)
8
O
	1
O							Protective ground
							E1	(101)

3
O	* R x D
16
O	R x D
2
O	* T x D
15
O	T x D
5
O	CTS
18
O	* CTS
4
O	RTS
17
O	* RTS
20
O	DTS
8
O	* DTR
6
O	DSR
19
O	* DSR
1
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 specification I/O device peripheral unit determines how it is connected.

In the interface link diagram, a device is assumed to comply with the SINUMERIK specification. The RS 422 interface is on a special connector.

3.5Length of the transmission line

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

3.6Level 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	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

SINUMERIK System 800, (PJ)

10.88

4 Interface Overview

4.1 Pin assignments of the data interfaces

4 Interface Overview

4.1Pin assignments of the data interfaces

4.1.1Pin 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

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

4-1

SINUMERIK System 800, (PJ)

4 Interface Overview

10.88

4.1.2 Pin assignments of the RS 422 interface

4.1.2Pin 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

4-2	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02
	SINUMERIK System 800, (PJ)

07.90

4 Interface Overview

4.2 Explanation of signal names

4.2Explanation 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

4.3Format of a serially transmitted character

T x D	Quiescent											Data		bits									Stop
	state																						elements
R x D								1		2		4		5		6		7		8
											3
				Start																	Parity
				element																	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.

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

4-3

SINUMERIK System 800, (PJ)

4 Interface Overview

10.88

4.4 Block diagrams of the data interfaces

4.4Block diagrams of the data interfaces

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

Data bus DB
		Baud rate			Scaler	CPU frequency
		generator
		T x C	R x C
Select (1)
				U SART 1)
			T x D			R x D
RTS	DTR						CTS	DSR
	V.24		20 mA		20 mA		V.24
	driver		driver		receiver		receiver
									T x RDY	R x RDY
										1
RTS	DTR	* T x D	TTY 2	TTY 1	TTY 4	TTY 3	* R x D	CTS	DSR
										IR
	V.24		20 mA		Duplex		V.24			Interrupt
	Output		Transmit		Receive		Input

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	© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

SINUMERIK System 800, (PJ)

07.90

4 Interface Overview

4.4.2 Block diagram of an RS 422 interface

4.4.2 Block diagram of an RS 422 interface

Data bus DB
		Baud rate				Scaler		CPU frequency
		generator
		T x C		R x C
Select (1)
					U SART
	RTS	DTR		T x D		R x D		CTS		DSR
		RS 422						RS 422
		driver						receiver
											1
RTS	* RTS	DTR	* DTR	* Tx D	Tx D	* R x D	R x D	CTS	* CTS	DSR	*DSR
											IR
		RS 422 Output						RS 422 Input			Interrupt

END OF SECTION

© Siemens AG 1990	All Rights Reserved 6ZB5 410-0AQ02	4-5
SINUMERIK System	800, (PJ)

10.88

5 Adapting the Interfaces to I/O Devices

5.1 General notes

5 Adapting the Interfaces to I/O Devices

5.1General 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).

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

5-1

SINUMERIK System 800, (PJ)

5 Adapting the Interfaces to I/O Devices

03.91

5.2 Setting data

5.2Setting 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 º@º, º:º, º=º, º[º, º]º and º,º and the definition for the character ºEnd of transmissionº is entered in 7 additional bytes for two interfaces.

Byte

Function

No.

Bit

7

6

5

4

3

2

1

0

1

Device coding - input-

2

Transmission format - input -

Stop elements

Type of

Parity

Baud rate

parity

bit

3

Device coding - output -

4

Transmission format - output -

Stop elements

Type of

Parity

Baud rate

parity

bit

5

Xon character (e.g. DC1 = 11hex)

6

Xoff character (e.g. DC3 = 93hex)

7

Special bits

Output

Program

End of

Output in

Stop at

Evaluate

Output

Read-in

without

start

block

EIA

character

data set

without

progr. of

1st Xon

with LF

CR LF

code

end of

ready

leader

systems

character

trans-

DSR

and

3, 8

mission

trailer

Delete

Switch off

8

program

time

without

watchdog

reorgan.

EIA code for º@º (e.g. 6D hex)

9

10

EIA code for º:º (e.g. 46 hex)

11

Code for ºEnd of transmissionº (e.g. ETX=03 hex in ISO)

12

EIA Code for º=º (e.g. 1C Hex)

13

EIA code for º[º

14

EIA code for º]º

15

EIA code for º,º

5-2

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0AQ02

SINUMERIK System 800, (PJ)