Allen-Bradley SLC 500

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• Siemens QUICKDESIGNER
HMI-CAB-C52 Cable
The target display connects to a Siemens S7300 MPI port using an HMI-CAB-C52 cable. Connect the
cable to the PC adapter 6ES7 972-0CA21-0XA0. The PC adapter connects a PC or QuickPanel display
to the MPI interface (Multipoint Interface) via the serial COMM port of an S7 PLC.
HMI-CAB-C52
TCP DISPLAY PC ADAPTER MPI S7 PLC
Communication Setup
SIEMENS SIMATIC S7-300 – Connect the PLC to the QuickPanel using an HMI-CAB-C52 cable
and the Siemens S7 PC adapter configured for 19200 baud rate. Setup the QuickPanel port
communication to RS232C, 19200 baud, 8 data bits, odd parity, 1 stop bit, and none handshake. Click
on Protocol, and set the source I.D. to 3, destination I.D. to 2, the timeout to 2 seconds and node range
to 31.
Tag Variable Table
Device DB Range File Address Range Bit Range Data Range Description &
Prefix Format Min./Max. Min./Max. Min./Max. Notes
BITS (the last digit is the bit (0-7))
E or I n/a n/a 0-127b 0-7 0-1 Input
A or Q n/a n/a 0-127b 0-7 0-1 Output
M or F n/a n/a 0-255b 0-7 0-1 Internal Bit
DB##:DB 01-60 Dec 0-65535b 0-7 0-1 Data Block
WORDS (addressing is in byte increments, use every second address for word addressing)
EW or IW n/a n/a 0-126 n/a 0-65535 Input
AW or QW n/a n/a 0-126 n/a 0-65535 Output
MW or FW n/a n/a 0-254 n/a 0-65535 Internal Bit
DB##:DW 01-60 Dec 0-65534 n/a 0-65535 Data Block
T n/a n/a 0-127 n/a 0-65535 Timer(Read Only)
C or Z n/a n/a 0-63 n/a 0-65535 Counter(Read Only)
DOUBLE WORD (32 BIT)
DB##:DD 01-60 Dec 0-65532 n/a -99999999 Data Block
99999999
Word and double words work on even addresses. If an odd address is entered the protocol will use the
preceding address. _ID option for alternate PLC address is NOT available. The data block bit will clear
the rest of the word (excluding toggle pushbutton). Input, Output, and Int Bits are true bit writes.
EX: MW3 will work as MW2.
EX: DB01:DD7 will work as DB01:DD6.