Macro 31: AS-i Dual Slave with xed setpoint
The control accesses the two slaves of the converter each via four bits.
Via Slave 2, in accordance with prole 7.A.E, the control species the speed setpoint via the
motor control bits (AS-i.DO0 …AS-i.DO2).
Via Slave 1, the control sends data in cyclical or acyclical mode, in accordance with prole
7.A.5.
The control requires one bit per slave in order to specify the slave.
Macro 31, Slave 2 with prole 7.A.E: Control → Converter
• AS-i.DO0 → p1020.0 = 2093.0 Fixed speed bit 0
• AS-i.DO1 → p1021.0 = 2093.1 Fixed speed bit 1
• AS-i.DO2 → p1022.0 = 2093.2 Fixed speed bit 2
• AS-i.DO3 → Select Slave A or Slave B, interconnected internally
Fixed speeds via the motor control bits and response in the converter (Page178)
If the control species the speed setpoint, the converter replies:
Macro 31, Slave 2 with prole 7.A.E: Converter → control
• p2080[0] = 53.13 PLC ready to switch on → AS-i.DI0
• p2080[1] = 899.11 Pulses enabled → AS-i.DI1
• p2080[2] = 722.0 State DI0 → AS-i.DI2
• p2080[3] = 722.1 State DI1 → AS-i.DI3
If the control sends a diagnostic request via AS-i.P0, the converter replies with the currently
pending fault or alarm messages.
Alarm and fault messages via RP0… RP3 from the converter to the AS-i master
(Page178)
Macro 31, Slave 1 with prole 7.A.5: Control → Converter
• AS-i.DO0 → Time signal for the CTT2 (Combined Transaction Type 2) transfer from
the AS-i master
• AS-i.DO1 → Data bit for the CTT2 transfer, four bytes cyclically or acyclically via PIV
(parameter channel). The reading and writing of parameters is possible
via the PIV. Because data is transferred bit-by-bit, the read and write
process is very slow.
• AS-i.DO2 → p3390 = 2093.4 Override quick stop
• AS-i.DO3 → Select Slave A or Slave B, interconnected internally
Macro 31, Slave 1 with prole 7.A.5: Converter → control
• p2080[4] = 722.2 State DI2 → AS-i.DI0
• p2080[5] = 722.3 State DI3 → AS-i.DI1
Advanced commissioning
7.7Drive control via AS-i
SINAMICS G115D Wall Mounted distributed drive
176 Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA