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Micromod MOD: Modcell 2050R MODBUS Communications User Manual

Page 17

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IB-23C650M

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

Middle

Display

Bottom

Display

Entry Description

**MENU**

None.

ENABLE

ON

OFF

= enables the bus for communications with a
host device.
= disables the communications bus from
receiving or writing with a host device.
The bus must be disabled in order to make
changes in the following steps.

ADDRESS

XXX

Where X is any address between 1 and 247.
Each instrument on a bus must have a unique
address.

RATE

XXXX

Where X is one of the following baud rates;
150, 300, 1200, 2400, 4800, 9600, 19200,
38400. All devices on the same bus must have
the same baud rate.

SELECT

ODD
EVEN

= Parity calculation is odd.
= Parity calculation is even.
Note: Total word length equals start bit (1) +
data (8 bits) + parity (1) + stop bits (1/2).
Total word length can be 11 or 12 bits.

BITS

1
2

= One stop bit appended to character.
= Two stop bits appended to character.

TYPE

RD_ONLY

RD/WRITE

= Allows the host device to read only from the
controller.
= Allows the host device to read data from and
write data to the controller.

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