Start-Up 09.02
4-34 Siemens AG 6SE7087-6AK85-1AA0
Rectifier/Regenerating Unit Operating Instructions
4.3.6 Serial interfaces
4.3.6.1.1 Basic converter interface SST1
The USS protocol (universal serial interface) is implemented at the basic converter interface SST1.
The following documentation is available depending on the particular application of the SST1 basic converter
interface:
♦ Connection of higher-level programmable controllers with USS protocol:
SIMOVERT Master Drives
Use of the serial interface with USS protocol
Order No.: 6SE7087-6CX87-4KB0
♦ Additional general comments regarding connecting-up and parameterization:
♦ Connecting-up:
Also refer to "Control terminal strip" Section 3.3
NOTE
Communications can either be realized via the terminal strip of CUR-X100 (RS485 standard) or the interface
connector on PMU-X300 (9-pin SUB D connector / RS485 or RS232)
Only one of the two possible connections (-X100 or -X300) may be used!
NOTE
The bus terminating resistors (total 150 Ω) must be switched-in at the last bus node (slave).
To realize this, jumpers of DIP-FIX switches S1 and S2 must be closed on board CUR!!
♦ Parameterization:
− Defining the interface:
P683 to P687
− Define the process data (control word, status word, setpoints, actual values) for the interface:
Refer to "Process data" Section 4.3.1
− Enabling parameterization:
P053 or P927
NOTE
The factory setting (refer to "Parameter list" Chapter 5) can be used if the SST1 basic converter interface is
not used!
4.3.6.1.2 Basic converter interface SST2 (A2-X117), see Section 9.6, Options
4.3.6.2 Dual-port RAM (DPR for SCB, CB, TB)
The dual-port RAM is the internal interface on the CUR (-X107) to connect possible option boards via the
backplane bus of the electronics box (LDA bus adapter required
).
Possible option boards: TB (Technology board);
SCB (serial communications board); CB (Communications board).
To connect possible option boards and parameterize the interface, also refer to the Section 3.5 "Recommended
circuits" as well as in the appropriate Instruction Manuals to the various option boards.
Additional information can be taken from Sections 4.3.1.1 to 4.3.1.4 "Control word, status word, setpoints,
actual values".
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