Communications Protocols; Modbus; Modbus Com Port Configuration; Figure 3-1. Modbus Via Ethernet - Teledyne T200 User Manual

COMMUNICATIONS PROTOCOLS

MODBUS (Section 3.4.1) and Hessen (Section 3.4.2) are available with the analyzer.
MODBUS registers are provided in Appendix A.

MODBUS

These instructions assume that the user is familiar with MODBUS communications, and
provide minimal information to get started. Please refer to the Teledyne API MODBUS
manual, PN 06276, and to www.modbus.org for MODBUS communication protocols.
Minimum Requirements:
Instrument firmware with MODBUS capabilities installed
•
• MODBUS-compatible software (TAPI uses MODBUS Poll for testing; see
www.modbustools.com)
Personal computer with communications cable (Ethernet or USB or RS232), and
•
possibly a null modem adapter or cable

MODBUS COM PORT CONFIGURATION

MODBUS communications can be configured for transmission over Ethernet or serial
COM port through the Setup>Comm menu. Make the appropriate cable connections
(Ethernet or COM port) between the instrument and a PC.
Check the instrument's Modbus Units selection in the Setup>Vars menu and edit if needed.
Ethernet:
083730200A DCN7962
MODBUS is available on TCP port 502. By default, port 502 is assigned to
the instrument's TCP Port 2. (Setup>Comm> TCP Port2, Figure 3-1).

Figure 3-1. MODBUS via Ethernet

Teledyne API T200 NO/NO /NO Analyzer with NumaView™ Software
2 x
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