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Specifications
29
3.8.12 DSENET® FOR EXPANSION MODULES
DSENet® is the interconnection cable between the host controller and the expansion module(s) and
must not be connect to any device other than DSE equipment designed for connection to the
DSENet®
Cable type
Two core screened twisted pair
Cable characteristic
impedance
120
Ω
Recommended cable
Belden 9841
Belden 9271
Maximum cable length
1200m (¾ mile) when using Belden 9841 or direct equivalent.
600m (666 yds) when using Belden 9271 or direct equivalent.
DSENet® topology
“Daisy Chain” Bus with no stubs (spurs)
DSENet® termination
120
Ω
. Fitted internally to host controller. Must be fitted externally to the
‘last’ expansion module by the customer.
Maximum expansion
modules
Total 20 devices made up of DSE2130 (up to 4), DSE2131 (up to 4),
DSE2133 (up to 4), DSE2152 (up to 4), DSE2157 (up to 10), DSE2548
(up to 10)
This gives the possibility of :
Maximum 80 additional relay outputs
Maximum 24 analogue outputs
Maximum 80 additional LED indicators
Maximum 104 additional inputs (16 of which are digital, 56 are
analogue or digital if required, and 32 temperature sensor)
NOTE: As a termination resistor is internally fitted to the host controller, the host
controller must be the ‘first’ unit on the DSENet®. A termination resistor MUST be fitted to the
‘last’ unit on the DSENet®. For connection details, you are referred to the section entitled
‘typical wiring diagram’ elsewhere in this document.
NOTE : DSE8600 series does not support the 2510/2520 display modules.
3.8.13 DSENET® USED FOR MODBUS ENGINE CONNECTION
As DSENet® utilises an RS485 hardware interface, this port can be configured for connection to
Cummins Modbus engines (Engines fitted with Cummins GCS).
This leaves the RS485 interface free for connection to remote monitoring equipment (i.e. Building
Management System, PLC or PC RS485 port).
While this is a very useful feature in some applications, the obvious drawback is that the DSENet®
interface is no longer available for connection to expansion devices.
Example of configuring the DSENet® for connection to Cummins QST GCS using the DSE
Configuration Suite Software:
Содержание DSE8610
Страница 47: ...Installation 47 4 2 2 3 PHASE 4 WIRE WITHOUT EARTH FAULT PROTECTION...
Страница 51: ...Installation 51 4 3 2 SINGLE PHASE WITHOUT EARTH FAULT...
Страница 53: ...Installation 53 4 3 4 2 PHASE L1 L2 3 WIRE WITHOUT EARTH FAULT...
Страница 55: ...Installation 55 4 3 6 2 PHASE L1 L3 3 WIRE WITHOUT EARTH FAULT MEASURING...
Страница 100: ...Protections 100 8 8 1 EARTH FAULT TRIPPING CURVES NOTE DSE Factory setting is time multiplier K 0 4...
Страница 118: ...Intentionally Left Blank 118...