Serial Communications; C.4 Serial Communications - Emerson Daniel 3410 Series Retrofit Instructions

3410 Communication and Output settings
Figure C-8:
C.4

Serial communications

Use a serial cable, Daniel P/N 3-2500-401, to connect to a PC running Daniel MeterLink.
The cable is designed for RS-232 communications which is the serial Port A default
configuration (see
The DB-9 end of the cable plugs directly into the PC running Daniel MeterLink
wires on the other end of the cable connect to the CPU Module RS-485/RS-232 terminals.
The RED wire goes to RX, the WHITE wire goes to TX, and the BLACK wire goes to COM (see
Table 3-5 for Port A wiring).
RS-485, 2-wire connection on Port A, uses TX+ and TX- on the CPU Module and has a
ground wire.
When Belden wire No. 9940 or equivalent is used, the maximum cable length for RS-232
communications at 9600 bps is 88.3 meters (250 ft.) and the maximum cable length for
RS-485 communication at 57600 bps is 600 meters (1970 ft.).
Port A supports a special override mode which forces the port to use known
communication values (19200 baud, address 32, RS-232). Note that the protocol is auto-
detected. This mode is expected to be used during meter commissioning (to establish
initial communication) and in the event that the user cannot communicate with the meter
(possibly due to an inadvertent communication configuration change). Alternately, when
using Daniel MeterLink with an Ethernet port, use Ethernet cable, Daniel P/N
1-360-01-596, to connect the PC.
74
CPU Module Frequency and Digital shared common ground
Appendix D Systems Wiring Diagram, Daniel Drawing DMC - 005324).
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Retrofit Instructions