Spa-Zc400Mmp And Spa-Zc400Mmg - ABB SPA-ZC 400 Installation And Commissioning Manual

SPA-ZC 400
3.1.
14
Ethernet Adapter
Modbus/TCP Brigde
Installation and Commissioning Manual
Media converters:
RuggedCom RMC-100-MM
*
IMC McBasic MM1300
*
Allied Telesyn AT-MC302-20
*
More tested devices can be found on the ABB web site
(http://www.abb.com/substationautomation).

SPA-ZC400MMP and SPA-ZC400MMG

The optional interface provides a connection between the REF 541/3/5,
REM 543/5 or RET 541/3/5 device and the fibre-optic SPA and LON. The
bus connection module converts incoming optical signals from the SPA and
LON bus to electrical RS-485 signals for the REF 541/3/5, REM 543/5 and
RET 541/3/5 devices and vice versa. It contains a service pin for LON nodes.
The optional interface can be used in loop- and star-type bus topologies. It is
possible to select the idle state of module line. The light can be turn on or off.
The jumpers select the bus topology (loop or star) depending on whether the
light is turned on or off.
In the loop topology, the interface receives the message from the fibre-optic
interface and passes it both to the fibre-optic transmitter and to the RS-485
interface. In the star topology, the interface receives the message from the
fibre-optic receiver and passes it only to the RS-485 interface. If the message
is received from the RS-485 interface, it is passed to the fibre-optic
transmitter in both bus topologies.
The SPA bus communication uses loop and light off modes, when the module
jumpers are in loop- and light off- positions. The LON bus communication
uses star and light off modes, when the module jumpers are in star- and light
off-positions.
In the LON bus communication the optional interface supports collision
detection. The service pin is connected via the RS-485 interface to the
device's Neuron chip, which is connected to the interface.
Table 3.1.-1 Settings of the jumper
Topology
Star
Star
Loop
Loop
Light on/off
Light off
Light on
Light off
Light on
1MRS756014
Protocol
LON/SPA
Not supported
LON/SPA
Not supported