Driver objects

S7TCP32 -> Creating variables -> Driver objects and datatypes -> Driver objects
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The following object types are available in this driver:

Driver object types and supported IEC data types for process variables in zenon

Driver object type

Channel type

Read / Write

Supported data types

Comment

ALARM_S Associated value

65

L

BOOL, SINT, USINT, INT, UINT, DINT, UDINT

Variables of the type ALARM_S associated value contain the associated values received with a message, if they exist. Also here the offset contains the S7 message number. The addressing of the associated value in the associated value record is realized via the bit number. If e.g. 3 associated values of the type Byte are received, the first one has bit number 0, the second has bit number 8 and the third has bit number 16.

ALARM_S Message

9

L

BOOL, UDINT

With the datatype ALARM_S bit spontaneously realtime-stamped alarm messeges of the S7 can be received (e.g. from PDiag). This variable only has a value, when the S7 sends an ALARM_S telegram. No initial image or similar thing is read. The offset here is the S7 message number.
A variable of type ALARM_S message doubleword always contains the last received message number. The offset is not used here and has to be 0.

Output

11

L / S

BOOL, SINT, USINT, INT, UINT

If you want outputs to be written, you have to activate this in the general section of the driver settings.

Input

10

L

BOOL, SINT, USINT, INT, UINT

 

Ext. data block

34

L / S

BOOL, SINT, USINT, INT, UINT, DINT, UDINT, REAL, STRING, WSTRING, DATE_AND_TIME

STRING: max. 210 characters
DATE_AND_TIME: 8 bytes time*

S5Time data block

97

L / S

REAL

Only times in seconds will be read and written. Attention: 32 bits of data will be read, but in the S7, S5Time has only 16 bits; you should therefore make sure that there are still 16 bits left after the last S5Time object in a data block.

PLC marker

8

L / S

BOOL, SINT, USINT, INT, UINT, DINT, UDINT, REAL

 

Counters

4

L / S

UDINT

 

Time

5

L

REAL

 

Driver variable

35

L / S

BOOL, SINT, USINT, INT, UINT, DINT, UDINT, REAL, STRING

Variables for the statistical analysis of communication.

Find out more in the chapter about the Driver variables

*)The data type DATE_AND_TIME in detail:

For each offset the following structure is read or written:

Byte

Contents

Value

Possible value range

BCD code

0

Year

0 - 99

1990 - 1999
2000 - 2089

90h - 99h
00h - 89h

1

Month

1 - 12

1 - 12

01h – 12h

2

Day

1 - 31

1 - 31

01h – 31h

3

Hour

0 - 23

0 - 23

00h - 23h

4

Minute

0 - 59

0 - 59

00h - 59h

5

Second

0 - 59

0 - 59

00h - 59h

6

Millisecond HT

0 - 990 ms Bit 4 - 7 Hundreds, 0 - 3 Tens

0 - 999

00h - 999h

7

Milliseconds O, Data

0 - 9 Bit 4 - 7 millisec. Ones, 0 - 15 Bit 0 - 3 Data