Super Systems AC20 User Manual

Page 95

Band alarm

Band alarm
Operative mode

Operative mode

Operative mode: Inside or outside programmable.
Threshold

Threshold

Threshold: two thresholds programmable:
- Low - from 0 to -1000 digits.
- High - from 0 to +1000 digits.
Hysteresis

Hysteresis

Hysteresis: programmable in engineering units from 1 to 200
digits.

Deviation alarm

Deviation alarm
Operative mode

Operative mode

Operative mode: high or low programmable.
Threshold

Threshold

Threshold: programmable from - 1000 to +1000 digits.
Hysteresis

Hysteresis

Hysteresis: programmable in engineering units from 1 to 200
digits.

SERIAL INTERFACE

SERIAL INTERFACE
Types:

Types:

Types: Optoisolated RS 485
Protocol type

Protocol type

Protocol type: MODBUS, JBUS (RTU mode).
Baud rate

Baud rate

Baud rate: programmable from 600 to 19200 BAUD.
Byte format

Byte format

Byte format: 8 bit.
Parity

Parity

Parity: even, odd or none programmable.
Stop bit

Stop bit

Stop bit: one.
Address

Address

Address: from 1 to 255.
Output voltage levels

Output voltage levels

Output voltage levels: according to EIA standard.
NOTE

NOTE

NOTE: The EIA standard establishes that by RS-485 interface it
is possible to connect up to 30 devices with one remote master
unit.
The serial interface of these instruments is based on “High input
impedance” transceivers; this solution allows you to connect up
to 127 devices (based on the same transceiver type) with one
remote master unit.