Installation and Use Manual 27
Installation and Setup
ProLink II Setup Transmitter StartupUsing ProLink IIBefore You Begin
Table 2-13 MVD Direct Connect auto-detection limits
Parameter Option
Protocol Modbus RTU (8-bit)
Modbus ASCII (7-bit)
Baud rate Standard rates between 1200 and 38,400
Parity Even, odd, none
Stop bits 1, 2
Table 2-14 Model 2400S service port auto-detection limits
Parameter Option
Protocol Modbus RTU (8-bit)
Modbus ASCII (7-bit)
Address Responds to both:
• Service port address (111)
• Configured Modbus address (default=1)
Baud rate Standard rates from 1200 to 38,400
Stop bits 1, 2
Parity Even, odd, none
Table 2-15 Default communication parameters for Series 1000/2000/3000 transmitters
Default values
Transmitter Physical layer Protocol Baud
Data
bits
(1)
(1) ProLink II automatically sets data bits appropriately for the configured protocol. Even though a data bits parameter may be
configured in the transmitter, you do not need to configure it in ProLink II. HART protocol is always 8 data bits. If your transmitter
is configured for Modbus with 7 data bits, specify Modbus ASCII; if your transmitter is configured for Modbus with 8 data bits,
specify Modbus RTU.
Stop
bits Parity Address
Model 1500/2500 Bell 202
(2)(3)
(2) Connection to primary mA output, or to HART clips (Model 2400S transmitters only).
(3) Except Model 1500 transmitter with the Filling and Dosing application. The Model 1500 transmitter with the Filling and Dosing
application does not support Bell 202 / HART communication.
HART
(4)
(4) HART/Bell 202 parameters are not configurable. The settings shown here are always in effect.
1200 8 1 odd 0
RS-485
(5)
(5) Connection to RS-485 terminals.
Modbus RTU 9600 8 1 odd 1
Model 1700/2700 AN Bell 202
(2)
HART
(4)
1200 8 1 odd 0
RS-485
(5)(6)
(6) Available only on Model 1700/2700 transmitters with analog outputs.
HART 1200 8 1 odd 0
Model 1700/2700 IS
Model 2700 CIO
Bell 202
(2)
HART
(4)
1200 8 1 odd 0
Model 2400S AN Bell 202
(2)
HART
(4)
1200 8 1 odd 0
RS-485 Modbus
(RTU or ASCII)
Auto-
detect
Auto-
detect
Auto-
detect
Auto-
detect
1
Series 3000 Bell 202
(2)
HART
(4)
1200 8 1 odd 0
RS-485
(5)
Modbus RTU 9600 8 1 odd 1