DSE857 USB to RS485 Communications Device

DSE857 USB to RS485 Communications Device


Project Description

The DSE857 communications device allows monitoring of a single DSE controller with USB connectivity by converting it to an RS485 connection. To achieve this the DSE857 connects to an RS485 MODBUS RTU master over 1.2km away. The MODBUS RTU master can be an external PLC, Building Management System (BMS) or a Windows PC running the DSE Configuration Suite Software.

Works with:

Auto Start:

DSEL401MKII/DSE4310/DSE4410/DSE4510/DSE4610/DSE6010 MKII/DSE6110/DSE6610/DSE7110 MKII/DSE7210/DSE7310

Auto Mains (Utility) Failure:

DSE4320/DSE4420/DSE4520/DSE4620/DSE6020/DSE6120 MKII/DSE6620/DSE7120MKII/DSE7220/DSE7320

OVERALL SIZE
35 mm x 97 mm x 102 mm (1.4” x 3.8” x 4.0”)
PRODUCT VARIANTS
0857-01 – 857 USB to RS485 Communications Device
WEIGHT
0.16kg
dse-ast-productscertified-icon6
Key Features
Converts a USB port to an RS485 port.
Remote control & monitoring for all connected modules.
Access permission settings.
Supports MODBUS RTU using the RS485 port.
Full building management system integration.
Firmware upgradeable.
DIN rail mount.

RS485

DC Supply COMMUNICATIONS
CONTINUOUS VOLTAGE RATING
8 V to 35 V Continuous
USB (Single DSE Controller)
CRANKING DROPOUTS
Able to survive 0 V for 100 mS, providing supply was at least 10 V before dropout and supply recovers to 5 V. This is achieved without the need for internal batteries. LEDs and backlight will not be maintained during cranking.
MAXIMUM OPERATING CURRENT
123 mA at 12 V
71 mA at 24 V
MAXIMUM STANDBY CURRENT
104 mA at 12 V
63 mA at 24 V
ELECTRO-MAGNETIC COMPATIBILITY ELECTRICAL SAFETY TEMPERATURE
BS EN 61000-6-2
EMC Generic Immunity Standard for the Industrial Environment.
BS EN 60950
Safety of Information Technology Equipment, including Electrical Business Equipment.
BS EN 60068-2-1
Ab/Ae Cold Test -30°C.
BS EN 61000-6-4
EMC Generic Emission Standard for the Industrial Environment.
BS EN 60068-2-2
Bb/Be Dry Heat +70°C.

 

VIBRATION HUMIDITY
BS EN 60068-2-6
Ten sweeps in each of three major axes.
5 Hz to 8 Hz @ +/-7.5 mm, 8 Hz to 500 Hz @ 2 gn.
BS EN 60068-2-30
Db Damp Heat Cyclic 20/55° C @ 95% RH 48 Hours.
BS EN 60068-2-78
Cab Damp Heat Static 40° C @ 93% RH 48 Hours.

 

SHOCK DEGREES OF PROTECTION PROVIDED BY ENCLOSURES
BS EN 60068-2-27
Three shocks in each of three major axes 15 gn in 11 ms.
BS EN 60529
IP65 – Front of module when installed into the control panel with the optional sealing gasket.