Product category:
Safety relays, interlocks, control systems, electrical components
News Release from: Jokab Safety UK | Subject: Pluto ASi safety programmable control unit
Edited by the Manufacturingtalk Editorial
Team on 18 April 2008
Safety PLC avoids third PLC need on ASi
network
Jokab Safety's latest safety programmable control unit, which can work on the ASi bus network, communicates directly with all PLCs without the need of adding an extra PLC.
Jokab Safety has released its Pluto ASi safety programmable control unit, which can work on the ASi bus network and has a combination of three functions Pluto ASi can be configured to be Master/Monitor, Monitor/Slave or Monitor only
This article was originally published on Manufacturingtalk on 17 Aug 2004 at 8.00am (UK)
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* In Master/Monitor mode the Pluto controls the ASi bus and reads the I/O in the slave units.
All the I/O can be used in the Pluto Manager program.
* In Monitor mode the Pluto listens to the bus and an external Master controls the safety inputs and outputs in an external PLC.
* When set for Monitor/Slave the unit is the same as a Monitor with the Pluto acting as a slave to the ASi Master.
At the same time Pluto Asi can connect to other Pluto PLC units via the Safebus and therefore other AS-i networks can be incorporated in to the program.
This also allows safety devices that are not on the ASi bus to be included in to the safety system.
* Three PLCs - it is normal on standard ASi systems to use three PLCs when using two ASi networks, explained Jokab to manufacturingtalk.
Two of these PLCs monitor the two ASi branches and a third PLC allows the networks to communicate to each other.
Jokab Safety's Pluto has the ability to communicate directly with all PLCs and without using an extra PLC.
This means a reduction in costs, space and programming time.
Features of the Pluto ASi include the following.
* Four failsafe inputs.
* Four configurable digital I/O or analogue outputs.
* Four failsafe outputs.
Like all members of the Pluto family, Pluto Asi includes three dynamic pulses which can be used in the safety system.
This allows the user to have a wide range of opportunities when selecting safety devices in the field.
For many years, Jokab Safety have been producing interfaces and dedicated products that can work with the dynamic pulse in order to allow the user to meet Category 4/SIL 3 when connecting devices in series.
Gateways, HMI's and encoders can be connected to the Pluto on the Safebus.
The latest Pluto Manager software can be downloaded from Jokab's Web site.
The software includes all manuals and 27 safety function blocks which cover all applications when using devices for Emergency Stop, Two hand control, foot switches, light curtains, safety switches, mats and bumpers.
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