RS-485 connection parameters
(continued)
Table C-1:
Connection type
Parameter
Value
Optional or re-
quired?
Auto-detection
Baud Rate
1200 to 38400
Optional
Yes. The device accepts con-
nection requests that use
any valid setting, and re-
sponds using the same set-
ting.
Parity
None
,
Odd
,
Even
Optional
Yes. The device accepts con-
nection requests that use
any valid setting, and re-
sponds using the same set-
ting.
Stop Bits
1
or
2
Optional
Yes. The device accepts con-
nection requests that use
any valid setting, and re-
sponds using the same set-
ting.
7.
Click
Connect
.
Need help?
If an error message appears:
•
Switch the leads and try again.
•
Verify the Modbus address of the transmitter.
•
Ensure that you have specified the correct port on your PC.
•
Check the wiring between the PC and the transmitter.
•
For long-distance communication, or if noise from an external source interferes with the
signal, install 120-
Ω
½
-W terminating resistors in parallel with the output at both ends of
the communication segment.
•
Ensure that there is no concurrent Modbus communication to the transmitter.
C.2.3
Connect with ProLink III over HART/Bell 202
You can connect directly to the primary mA terminals on the transmitter, to any point in a
local HART loop, or to any point in a HART multidrop network.
CAUTION!
If the transmitter is in a hazardous area, do not remove the transmitter end-cap while the
transmitter is powered up. Removing the end cap while the transmitter is powered up could
cause an explosion. To connect to the transmitter in a hazardous environment, use a
connection method that does not require removing the transmitter end-cap.
Using ProLink III with the transmitter
194
Micro Motion
®
Compact Density Meters (CDM)
Summary of Contents for CDM100M
Page 8: ...Getting Started 2 Micro Motion Compact Density Meters CDM ...
Page 12: ...Before you begin 6 Micro Motion Compact Density Meters CDM ...
Page 20: ...Configuration and commissioning 14 Micro Motion Compact Density Meters CDM ...
Page 26: ...Introduction to configuration and commissioning 20 Micro Motion Compact Density Meters CDM ...
Page 110: ...Integrate the meter with the control system 104 Micro Motion Compact Density Meters CDM ...
Page 116: ...Operations maintenance and troubleshooting 110 Micro Motion Compact Density Meters CDM ...
Page 124: ...Transmitter operation 118 Micro Motion Compact Density Meters CDM ...
Page 194: ...Using the transmitter display 188 Micro Motion Compact Density Meters CDM ...
Page 208: ...Using ProLink III with the transmitter 202 Micro Motion Compact Density Meters CDM ...