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mmmmm
Table of Contents
Connection ..............................................................................................................................................70
Wiring Guidelines ........................................................................................................................70
Configuring Communication Ports ....................................................................................................71
P770 Serial protocols ..................................................................................................................71
P771 Protocol address ................................................................................................................72
P772 Baud Rate ............................................................................................................................72
P773 Parity .....................................................................................................................................72
P774 Data bits ...............................................................................................................................73
P775 Stop bits ...............................................................................................................................73
P778 Modem attached ...............................................................................................................73
P779 Modem idle time ...............................................................................................................74
P780 RS-232 Transmission interval .........................................................................................74
P781 Data message ....................................................................................................................75
Dolphin Protocol ....................................................................................................................................76
Dolphin Plus Screen Shot ..........................................................................................................76
Modbus RTU/ASCII Protocol ..............................................................................................................77
How Modbus Works ...................................................................................................................77
Modbus RTU vs. ASCII ...............................................................................................................77
Modbus Format ............................................................................................................................78
Modbus Register Map ...............................................................................................................78
Modbus Register Map (cont’d) ................................................................................................80
Modems .........................................................................................................................................88
Error Handling ..............................................................................................................................90
Parameters .........................................................................................................................92
Start Up (P001 to P017) ........................................................................................................................92
Relay/Alarm Function (P100 - P117) ..................................................................................................95
mA I/O Parameters (P200 - P220) ......................................................................................................98
Calibration Parameters (P295 – 360) .............................................................................................. 102
On-line Calibration Options (P355 to P358) .................................................................................. 103
Linearization Parameters (P390 - P392) ........................................................................................ 106
Proportional Integral Derivative (PID) Control Parameters (P400 – P419) ........................... 106
Batch Control (P560 – P568) ............................................................................................................. 109
Totalization (P619 - P648) ...................................................................................................................111
Communication (P750 - P799) ...........................................................................................................114
Test and Diagnostic (P900 - P951) ...................................................................................................115
Troubleshooting ...............................................................................................................118
Common Problems Chart ........................................................................................................118
General-Communications .......................................................................................................119
Glossary ............................................................................................................................121
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