Technical data

SINAUT MICRO SC
C79000-G8900-C210
63
MD720-3 in OPC Mode
9
9.1 Connect / Setup the PPI adapter
The S7-200 PLC and the GSM/GPRS modem MD720-3 are connected by the
Siemens PPI Modemkabel Typ- Best. Nr. 6NH9701-0AD.
Connection
Connect the port PPI-RS485 with the PLC and the port PC-RS232 with the
SINAUT MD720-3. Use a gender changer to adapt the PPI cable and the modem.
Setup PPI-Adapter
Character format: 8 N 1
Bit count : 10 bit
Bit rate: 57600 bps
DIP switch:
DIP switch no.: 12345678
Position: 11100110
Caution
Only a half duplex connection is established by the PPI-cable. If (<5-10 Sec.)-data
packages are transmited too often, data loss may happen.