Siemens SINAMICS G120P - Single Slave Mode

Communication via AS-i - only for G110M
7.2 Single Slave mode
Fieldbuses
Function Manual, 04/2018, FW V4.7 SP10, A5E34229197B AE
219
7.2
Single Slave mode
In Single Slave mode, four bits are available for the communication between the AS-i master
and the inverter. The four bits are used to transfer process data. In parallel, the control can
start a diagnostic request via AS-i.P0.
The following default settings are available; both work with profile 7.F.E.
● Default setting 30: Standard Single Slave mode
● Default setting 32: Modified Single Slave mode
Default setting 30: Standard Single Slave mode
In standard addressing, the control specifies the speed setpoint via the motor control bits
(AS-i.DO0 … AS-i.DO3).
Control -> inverter
•
AS-i.DO0
-
>
p1020 = 2093.0
Fixed speed bit 0
•
AS-i.DO1
-
>
p1021 = 2093.1
Fixed speed bit 1
•
AS-i.DO2
-
>
p1022
= 2093.2
Fixed speed bit 2
•
AS-i.DO3
-
>
p1023
= 2093.3
Fixed speed bit 3
Table 7-2 Fixed speeds via the motor control bits (Page 224).
Inverter -> control
If the control specifies the speed setpoint, the inverter replies:
•
p2080[0] = 53.13
-
>
AS
-i.DI0
Operational enable for PLC
•
p2080[1] = 899.11
-
>
AS
-i.DI1
Pulses enabled
•
p2080[2] = 722.0
-
>
AS
-i.DI2
State DI0
•
p2080[3] = 722.1
-
>
AS
-i.DI3
State DI1
If the control sends a diagnostic request via AS-i.P0, the inverter replies with the currently
pending fault or alarm messages.
Table 7-5 Alarm and fault messages via RP0 … RP3 from the inverter to the AS-i
master (Page 225).