Interface plc <˘> nc operating system – Lenze ETC Motion Control User Manual

Page 269

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Interface PLC <˘> NC operating system

Definitions

Data block 2

5

5.1

5.1.3

l

269

EDSTCXN EN 2.0

For the ETC−MMI, the assignment of the DB2 listed in the table below is used.

This assignment is a recommendation for the use of the DB2. Within the
areas data word 0 ... 127 and 128 ... 191 a freely definable assignment is pos-
sible.

Data word

Name

Direction

000.00 – 007.15
008.00 – 015.15
016.00 – 079.15
080.00 – 095.15
096.00 – 096.15
097.00 – 097.15
098.00 – 125.15
126.00 – 126.15
127.00 – 127.15
128.00 – 128.15
129.00 – 143.15
144.00 – 159.15
160.00 – 160.15
161.00 – 161.15
162.00 – 189.15
190.00 – 190.15
191.00 – 191.15
224.00 – 255.15

States (28 bits)
Key control (128 bits)
Displays (64 data word)
Notes/static errors (256 bits)
Message buffer: acknowledgement counter
Message buffer: counter 1
Message buffer: user data (28 data words)
Message buffer: counter 2
Monitoring of PLC is running
Sub mode
States (256 bits)
Keys (256 bits)
Message buffer: acknowledgement counter
Message buffer: counter 1
Message buffer: user data (28 data word)
Message buffer: counter 2
Monitoring of HMI is running
Freely available machine constants

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

HMI

PLC

NC

If the key control is activated (DB1.31.4), the 128 bits from DB2.8.0 to
DB2.15.15 correspond to the MMI keys DB1.212.0 to DB1.219.15.

DW080.00−095.15

Signal state "1" has the effect that a text is displayed in the PLC
messages window on the MMI. The texts are stored in a file
(default:Lenze.txt). DW080.00 is linked with the entry
01020001, DW080.01 with the entry 01020002 etc.

DW128

If the ETC−MMI is used, the selected sub mode is stored here:
0: no sub mode selected; operating mode (DW131) = 1
Operating mode (DW131) = 1
1: step travel
2: modal traveling
3: target point traveling
4: handwheel
5: manual homing
6: automatic homing
7: zero points
Operating mode (DW131) = 3
1: block search
Operating mode (DW131) = 4
1: teaching

DW127.00−127.15,
DW191.00−191.15

The data words are used for mutual control of PLC and MMI.
This way, they can monitor whether the counterpart is still
"alive".
Operating mode:
PLC: DW127 := DW191;
HMI: DW191 := DW127 + 1;
If the data words do not differ over a certain period, the PLC can
detect that the MMI is no longer "alive".

DW224.00−255.15

The values of the machine constants MK_DW224_255 are
stored one−to−one in these data words.

Assignment

Explanation

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