User manual
IEC61131 User and Reference Manual 
April 22, 2008 
v 
Slave Mode ..................................................................................................................... 594 
Broadcast Messages ................................................................................................. 594 
Function Codes .......................................................................................................... 594 
Master Mode ................................................................................................................... 600 
Function Codes .......................................................................................................... 600 
Sending Messages .................................................................................................... 605 
MODEM COMMANDS ......................................................................................................... 607 
Modem Settings .............................................................................................................. 607 
Generic Modem ............................................................................................................... 607 
5901 High Speed Dial-up Modem ................................................................................... 608 
ATI 14400 ETC-Express ................................................................................................. 608 
ATI 14400 ETC-E, ETC-I ................................................................................................ 608 
Hayes Smartmodem 1200 .............................................................................................. 608 
Hayes ACCURA 96, 144 and 288 Modems .................................................................... 609 
Kama 2400 EI ................................................................................................................. 609 
Megahertz XJ4288 28.8 PC Card Modem ...................................................................... 609 
Multitech 224E7B ............................................................................................................ 609 
TeleSAFE 6901 Bell 212 Modem .................................................................................... 610 
US Robotics Sportster 28,800 ........................................................................................ 611 
Index of Figures 
Figure 1: Communication Protocols Configuration dialog. .................................................................. 26 
Figure 2: ClearSCADA Configuration (General) Dialog Box .............................................................. 27 
Figure 3: ClearSCADA Configuration (Advanced) Dialog Box ........................................................... 28 
Figure 4: ClearSCADA Configuration (Information) Dialog Box......................................................... 29 
Figure 5: DNP Configuration (General) Dialog Box ........................................................................... 30 
Figure 6: DNP Configuration (Flow Control) Dialog Box .................................................................... 32 
Figure 7: DNP Configuration (Dial Up) Dialog Box ............................................................................ 33 
Figure 8: DNP Configuration (Advanced) Dialog Box ........................................................................ 34 
Figure 9: DNP Configuration (Information) Dialog Box ...................................................................... 35 
Figure 10: Modbus ASCII Configuration (General) Dialog Box.......................................................... 52 
Figure 11: Modbus ASCII Configuration (Flow Control) ..................................................................... 54 
Figure 12: Modbus ASCII Configuration (Dial Up) ............................................................................. 55 
Figure 13: Modbus ASCII Configuration (Advanced) Dialog Box ...................................................... 57 
Figure 14: Modbus ASCII Configuration (Information) Dialog Box .................................................... 58 
Figure 15: Modbus ASCII in TCP Configuration (General) Dialog Box ............................................. 59 
Figure 16: Modbus ASCII in TCP Configuration (Advanced) Dialog Box .......................................... 61 
Figure 17: Modbus ASCII in TCP Configuration (Information) Dialog Box ........................................ 62 
Figure 18: Modbus ASCII in UDP Configuration (General) Dialog Box ............................................. 63 
Figure 19: Modbus ASCII in UDP Configuration (Advanced) Dialog Box .......................................... 65 
Figure 20: Modbus ASCII in UDP Configuration (Information) Dialog Box ........................................ 66 
Figure 21: Modbus RTU Configuration (General) Dialog Box ............................................................ 67 
Figure 22: Modbus RTU Configuration (Flow Control) ....................................................................... 69 
Figure 23: Modbus RTU Configuration (Dial Up) ............................................................................... 70 
Figure 24: Modbus RTU Configuration (Advanced) Dialog Box ........................................................ 72 










