Entron EN1000 series

ENTRON Controls, LLC. • 700120S • Page 127
10.3 24 VDC VALVE OUTPUTS
Optional Terminal Strip/Firing Board A/N 410319 with 24 VDC
output. See Application Note 700189 for additional information.
10.4 CURRENT SENSORS
Primary Coil and Secondary Rogowski Coils (6O and 10O)
are available for Constant Current operation on EN1001 Series
Controls. See Section 8.0 for further details.
10.5 PROGRAM LOCKOUT KEY SWITCH
A PROGRAM LOCKOUT key switch prohibits unauthorized editing of
control parameters. It can be ordered as a factory installed option or
ordered separately and field installed by the customer. See Section 2.1
for more details.
10.6 1 OF 7 VALVE EXTENSION BOARD
With this option, the three standard binary valves are decoded to one of
seven valves, providing an additional 7 valve output circuits. See
Application Note 700110 for further details.
10.7 SCHEDULE SELECT S49 OPTION
The S49 Option adds six binary select inputs to the EN1000/
EN1001 Series Controls. Through the use of these added inputs,
the user can select any one of 49 schedules to begin a sequence.
This option is typically tied to a PLC or PC that selects the required
schedule. Section 5.4.3 and Application Note 700182 provides
additional details.
10.8 RS485 OPTIONS
Controls with RS485 Option can communicate with Remote Terminal RT4jr. or PC or other
devices with RS485 interface, over two-wire RS485 network (ENBUS network). Enables use
of ENLINK 1000/1001 Software. Instruction Manual 700171 further explains this option.
The non-proprietary ENBUS protocol defines a message format that controls will recognize
and use, regardless of who is the host – either RT4 or other devices. It describes the process
which a host uses to request access to different controls, how the host will respond to request
from the controls, and how errors will be detected and reported. This protocol provides an
internal standard which hosts and controls use for parsing messages.
During communication on a ENBUS network, the protocol determines how each host and control
will know its address (Identification Number), recognize a message addressed to it, determine
which action will be taken, and extract any data or other information contained in the message.
10.0 OPTIONS ON EN1000/EN1001 SERIES CONTROLS (cont.)