Field Connections - Honeywell H-S81-HS Operation Manual

I/O modules
The module includes 2 x 8-way dip switches required for setting the communication parameters.

SW1: Modbus Address Configuration
SW1 dip switch configures module Modbus address in the 1-255 range. In Slave mode, it defines
module Modbus address, whereas in master mode it defines the address of the Slave peripheral
devices to which commands are to be sent. The address 00 is not allowed.
SW1-1
SW1-2
SW1-3
SW1-4
SW1-5
SW1-6
SW1-7
SW1-8

SW2: Modbus Parameter Configuration
The 1-2-3 dips of SW2 switch configure the Baud rate according to the table below:
SW2-1
Off
On
Off
On
Off
On
Off
On
The 4-5 dips of the SW2 switch configure parity and stop bit number
SW2-4
Off
On
Off
On
The 6-7-8 dips of the SW2 switch configure the following options:
SW2-6
SW2-7
SW2-8
1 Only for Master mode
Moreover, the module includes a Jumper for allowing the 120 ohm termination resistor on the
RS485 line.
JP1

Field Connections

The module can be connected to field terminal block by using a flat or a multi-conductor cable,
depending on the used bus type.
H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015
Modbus address Weight 1 (on = Active)
Modbus address Weight 2 (on = Active)
Modbus address Weight 4 (on = Active)
Modbus address Weight 8 (on = Active)
Modbus address Weight 16 (on = Active)
Modbus address Weight 32 (on = Active)
Modbus address Weight 64 (on = Active)
Modbus address Weight 128 (on = Active)
SW2-2 SW2-3
Off Off
Off Off
On Off
On Off
Off On
Off On
On On
On On
SW2-5 Parity
Off No parity
Off Even
On Odd
On Not allowed
On 2 stop bits
Off 1 stop bit
On Module in Master mode
Off Module in Slave mode
On Freezes the last acquired status in case of Slave disconnection
Off Puts all entities in communication fault trouble condition in case of Slave disconnection
On RS485 primary line termination added
Off RS485 primary line termination removed
Baud Rate
1200
2400
4800
9600
19200
38400
57600
115200
Parts of the H-S81-HS System
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