Accelnet & Stepnet Plus Panels User Guide
16-01339 Rev 07
B:
C
ONNECTING
BPL/BP2/TP2
FOR
S
ERIAL
C
ONTROL
This chapter describes how to connect one or more BPL/BP2/TP2 drives for control via the RS-232 bus on
one of the drives.
S
INGLE
-A
XIS AND
M
ULTI
-D
ROP
A BPL/BP2/TP2
drive’s RS-232 serial bus can be used by CME for drive commissioning. The serial bus can
also be used by an external control application (HMI, PLC, PC, etc.) for setup and direct serial control of the
drive. The control application can issue commands in ASCII format.
For experimentation and simple setup and control, a TELnet device such as the standard Microsoft Windows
HyperTerminal can also be used to send commands in ASCII format. For more information,
see
Copley ASCII
Interface Programmer’s Guide
.
The serially connected drive can also be used as a multi-drop gateway for access to other drives linked in a
series of CAN bus connections.
Instructions for hooking up a single-axis connection and a multi-drop network appear below.
S
INGLE
-A
XIS
C
ONNECTIONS
For RS-232 serial bus control of a single axis, set the CAN node address of that axis drive to zero (0). Note
that if the CAN node address is switched to zero after power-up, the drive must be reset or power cycled to
make the new address setting take effect.
M
ULTI
-D
ROP
N
ETWORK
C
ONNECTIONS
A serially connected BPL/BP2/TP2 drive can be used as a multi-drop gateway for access to other
BPL/BP2/TP2 drives linked in a series of CAN bus connections. Set the CAN node address of the serially
connected drive (gateway) to zero (0). Assign each additional drive in the chain a unique CAN node address
value between 1 and 127. If the BP2 is used as the master, axis B is sequentially addressed automatically.
Also, when using BP2 as a master, axis A will not be available for CAN controls. Use 120 Ohms termination
on the first and last drive.
PC, PLC, or HMI
for ASCII Control
Serial
COM port
for
RS-232
9pin D-sub
RJ11
Copley Am plifier
w ith ASCII
RS-232
SER-CK "Serial Cable Kit"
ADDRESS MUST BE SET
TO ZERO BEFORE
POWER-UP OR RESET.
CAN
ADDR
0
PC, PLC, or HMI
for ASCII Control
Serial
COM port
for RS-232
9pin D-sub
RJ11
Copley Amplifier
with ASCII RS-232
SER-CK "Serial Cable Kit"
ADDRESSES MUST BE
SET BEFORE POWER-UP
OR RESET.
CAN
ADDR
0
CAN Port
120 Ohm
Terminator
CAN
ADDR
CAN Port
CAN
ADDR
CAN Port
120 Ohm
Terminator
RJ45
CAN Network Cable UTP CAT.5E Gigabit Ethernet
CAN
ADDR
1
CAN Port
RJ45
RJ45
RJ45
RJ45
RJ45
2
TERMINATION MUST BE
USED ON FIRST AND LAST
NODE