SEW-Eurodrive MOVIGEAR DAC B, Operating Instructions Manual

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144
Operating Instructions – MOVIGEAR® DAC-B
9
Functional description
Communication with AS-Interface Double Slave GLK31A
9 Communication with AS-Interface Double Slave GLK31A
9.1 Functional description
9.1.1 Operating principle
An AS-Interface master according to the AS-Interface specification 3.0, rev. 2 in
conjunction with the M4 master profile is required for controlling the GLK31A double
slave.
On delivery, the GLK31A option has address 0 and profile S-7.A.7.7. If you set an
address > 0, the MLK31A option turns into a double slave with profiles S-7.A.7.7
(A- slave) and S-7.A.F.5 (B-slave).
You must not connect more than 31 of those slaves to one AS-Interface branch.
9.1.2 A-slave, meaning of AS-Interface data and parameter bits
The AS-Interface master transmits data bits and parameter bits to the GLK31A option
(A-slave). The GLK31A option forwards 4 data bits and 3 parameter bits via SBus
communication to the MOVIGEAR
®
inverter.
The MOVIGEAR
®
inverter contains several function modules (assignment tables) that
assign specific drive functions to the data bits. For information on the assignment of
functions, refer to chapter "Function modules".
Parameter bits • 3 of the acyclic parameter bits (P2 – P0) are used for switching between the individ-
ual function modules. These parameter bits determine the meaning of the data bits.
• In the extended address mode, the fourth parameter bit is not available for the user.
• Parameter selection between the function modules is also possible during operation
and with enabled MOVIGEAR
®
inverter. The meaning of the data bits might change
in this case.
• The parameter input bits are not used.
Data bits The following table shows the assignment of binary input data bits of the A-slave (cycle
time: max. 10 ms):
Parameter bits P2 – P0 are used for selecting the function modules.
• When function modules 2
hex
– 7
hex
are selected, data bits DI0 and DI1 are transmit-
ted from the slave to the master according to the MOVIGEAR
®
status word. Data bits
DI2 and DI3 contain the state of sensor inputs DI2 and DI3.
• When function modules 0
hex
– 1
hex
are selected, all 4 data bits DI0 – DI3 are
transmitted from the slave to the master according to the MOVIGEAR
®
status word.
The state of the sensor inputs is not transmitted.
Parameter bits (A-slave) Function of the input data bits (A-slave)
(P2 P1 P0
bin
) Function
module Bit 4
(DI3) Bit 3
(DI2) Bit 2
(DI1) Bit 1
(DI0)
010
bin
– 111
bin
2
hex
– 7
hex
Status
Sensor 2
Status
Sensor 1
MOVIGEAR
®
status
according to
chapter "Description of data bits, function
modules"
000
bin
– 001
bin
0
hex
– 1
hex
MOVIGEAR
®
status
according to
chapter "Description of data bits, function modules"