Pentair 920 Series - Baud Rate

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EN- Raychem920series-IM-H5687405/15
INDUSTRIAL HEAT TRACING SOLUTIONS
same MODBUS™ ADDRESS. This increases the number of HTCs allowed on a single MODBUS™
port from 247 to 7,904 (=247 x 32). This requires that any HTC sharing the same MODBUS™
ADDRESS as another HTC must have its own unique MODBUS™ SUB ADDRESS.
3.9.5 BAUD RATE
Purpose: Defines the data rate at which communications occur.
Setting: AUTO or 9600 or 4800 or 2400 or 1200 or 600 or 300
Procedure: Select the data rate to be compatible with other devices that will be connected to the
controller for communications purposes.
IMPORTANT: Not all communications interfaces support the various data rates, so the data rate
should be set to AUTO. The controller will au-tomatically select a BAUD RATE that is compatible
with the communications interface installed. If BAUD RATE = AUTO and a MODEM communi-cation
interface is used, a data rate of 300 is selected. Otherwise, if BAUD RATE = AUTO and a non-
MODEM communications interface is used, a data rate of 9600 is used.
3.9.6 PARITY (MODBUS™) (V3.11 AND UP)
Purpose: Defines the type of parity bit used with MODBUS™ communications.
Setting: NONE or ODD or EVEN
Procedure:Selectthedesiredtypeofparity.NotethatPARITYcanonlybeselectedwhenusing
either MODBUS™ protocol.
3.9.7 HARDWARE
Purpose: Identifies the type of communications interface installed in the 920 control module.
The controller automatically determines and displays which communications interface type is
available.
Values: NONE, MODEM or RS-232 or RS-485
3.9.8 DRIVER
Purpose: Defines the way the controller’s program communicates with the communications
interface.
Setting: AUTO or RS-232 or RS-485 or MODEM
Procedure: Select AUTO to enable the controller to choose the setting that matches the
communications interface installed.
3.9.9 PROFILE
Purpose: Defines the way the controller’s program supports communications handshaking and
communication interface signals.
Setting: AUTO or
FLOW CONTROL RS-232 or
STANDARD RS-232 or
3-WIRE RS-232 or
RS-485 or
EXTERNAL MODEM or
1200 BAUD MODEM or
300 BAUD MODEM
Procedure: Select the PROFILE to be compatible with other devices connected to the controller for
communications purposes. The setting should be AUTO. The controller will automatically select a
profile based on the type of communications interface installed in the 920 control module.
IMPORTANT:
• AUTO:Selectsacommunicationsprofilebasedonthedatarateandthetypeofcommunications
interface installed in the control module.
• FLOWCONTROLRS-232:ContinuouslyassertsRTS(RequestToSend),CTS(ClearToSend)is
required to enable any data transmitted, uses DCD (Data Carrier Detect) to qualify receive data.
• STANDARDRS-232:ContinuouslyassertsRTS,CTSisrequiredtoinitiateatransmitsequence,