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Toolbox 32 User Manual 1.47d www.cse-semaphore.com/mykingfisher
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148
RX Allen Bradley
Receives up to 100 consecutive registers from an Allen Bradley PLC (PLC5 or SLC500).
Comment: A 12-character description.
Station No. (decimal): (1-249) Station address configured in the Allen Bradley PLC. An Allen Bradley PLC
is treated like another RTU in the network. This means that the station address must be different to all the
other RTU addresses in the RTU's Network List.
Destination Register: (2 - 1024) Network register of the Kingfisher RTU to begin storing the data from.
Note: the first network register is reserved for the error code returned by the PLC after each message.
Source Register: Source address in the Allen Bradley PLC where data is read from. This should be a string
reference like N10:1.
No. Of Registers: (1-100) Number of 16-bit registers to read. Note: each floating point value uses two 16-bit
local registers.
PLC Type: PLC5 / SLC500.
Communicating With An Allen Bradley PLC
When using a TX_AB or an RX_AB block the RTU should be configured as follows:
• First ensure that the Allen Bradley driver is supported by the type of RTU that is being used and that the
latest firmware and driver are loaded in the RTU (as detailed in protocols.pdf available from www.cse-
semaphore.com/mykingfisher).
• Set the port protocol as ALLEN BRADLEY in Configuration, Port List.
• Set the port baudrate in Configuration, Port List.
• Add the station address of the PLC to the network list in Configuration, Network List (this must be a
unique address in the RTU network).
Note 1: The simplest way to connect between an RTU serial port and an Allen Bradley PLC is to use an
RS232 null modem cable (can use the Semaphore ADP-05 adapter and an RJ45 to RJ45 lead). The Allen
Bradley PLC requires a RS232 DB9 male port. An Allen Bradley SLC5/03 CPU has a DB9 male port while
the SLC5/02 CPU only has an RS485 RJ45 port and must have a communications module installed.
Note 2: if using Ethernet to communicate, the Allen Bradley driver uses TCP/IP port 2222 to communicate
with the Allen Bradley PLC.
Note 3: If a 1785-KE interface module is used between the PLC and the RTU, the 1785-KE station number
must also be configured in the network list. The PLC should then be configured as an indirect link via the
1785-KE station address.