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3.3 c
OmmunicAtiOn thrOugh field
tcp)
Bus
In order to use communication through the field-bus, the
pathway for communication must be changed. (See
3.2.5).
Through the native modbus TCP interface, the EFC-02
can connect to exactly one client (master). The standard
TCP port 502 is used. The cycle time for read and write
access is 200ms.
i
„f
c
mplemented
unctiOn
Odes
:
tOcOl
F
c
(Fc)
uNcTIoN
oDE
FC4
Read input register
FC6
Write single register
FC16
Write multiple registers
r
/
egister VAlues written
reAd ViA
T
Fc a
. D
yPE
DDR
EScRIPTIoN
Target Force
0
[N]
1
Payload [kg]
Min. Position
2
[mm]
Max. Position
3
[mm]
Actual
0
Force[N]
Actual Position
1
[mm]
2
Error Code
Estimated
3
Payload [kg]
4
Service State
Operation
5
Mode
6
Identification
The data type of the register values is: „INT16". To send
values to the partly completed machinery via fieldbus
(„EFC-02 recieves"), the „Multiplier" must be multiplied
by the value to be transmitted. To receive values from
the partly completed machinery via fieldbus („EFC-02
transmits"), the transmitted value must be divided by the
„Multiplier". Negative values are converted using two's
complement.
-
(
-
Bus
mOd
"
m
-tcp
-
Of the
OdBus
prO
D
EScRIPTIoN
m
tcp
OdBus
interfAce
m
-
uLTI
L
ImITS
PLIER
-200... 200 10
0...15
1000
0...20
1000
0...20
1000
-300... 300 10
-5...25
1000
0...4
1
-1, 0... 15
1000
0...2
1
0...10
1
0...32767
1
f
OrmulAs fOr the cOnVersiOn Of Bus VAlues
c
oNDITIoN
Value >= 0
Value < 0
Value < 32768
Value >= 32768
e
XAmples Of Bus cOmmunicAtiOn
m
-
uLTI
D
EScRIPTIoN
PLIER
Target Force
10
[N]
Payload [kg] 1000
:
Min. Position
1000
[mm]
Max. Posi-
1000
tion [mm]
Actual Force
10
[N]
Actual Posi-
1000
tion [mm]
Error Code
1
Est. Payload
1000
[kg]
Service State 1
Operation
1
Mode
Identification 1
To transmit the „Exmpl. Val. (example value) for „Target
Force [N]" of „-100.1", the converted „Res. Val. (result val-
ue) of 64535 must be transmitted via Modbus TCP.
3.4 s
led
tAtus
:
F
oRmuLa
Value x Multiplier
65536 - (-Value x Multiplier)
Value : Multiplier
-(65536 - Value) : Multiplier
:
R
.
R
ES
ES
E
.
R
.
xmPL
ES
v
.
v
aL
aL
v
.
v
.
aL
aL
(mSb)
(LSb)
-100.1 64535 252
23
10.521 10521 41
25
9.512
9512
37
40
15.487 15487 60
127
20.5
205
0
205
12.657 12657 49
113
1
1
0
1
4.519
4519
17
167
2
2
0
2
9
9
0
9
5482
5482
21
106
29
.
.
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