Summary:
USB / PPIM + is the PPI Multi-Master programming Cable which with
USB interface, to realize the level conversion and various of PPI
protocol conversion from USB to RS485.Many cheap USB / PPI cable on
the market simulate USB to virtual serial (COM port) to realize the
communications, it’s commonly known as "pseudo-USB interface".
The cable only convert the level from USB to RS485, can only
support the normal PPI Protocol. But the USB / PPIM + is the real
USB interface cable, without installing drivers, directly use the
USB option in STEP7 Micre / WIN software, support PPI, Advanced
PPI,and Multiple Master Network Protocol. The cable support the
187.
5 Kbps high-speed communications, and take charge of the Multiple
Master Network.
This cable is 100% compatible with Siemens PPI Multi-Master USB
Cable 6 ES7 901-3DB30-0XA0, and the only difference is that the
work power supply from the computer's USB port through the DC / DC
isolation, no longer powered by the PLC port. It’s easy to extend
communications distance of the RS485 without considering the power
supply. The two-color LED on the converter box indicates data’s
transceiving status.
USB/PPIM+ is designed for industrial-type photoelectric isolation
cable. USB port and RS485 ports are equipped with surge protection
and anti-lightning protection circuitry, which can be Hot plug.
It’s applicable to the entire Siemens S7-200 Series PLC It’s
particularly suited to the industrial scene which the
communications interface is more easily damaged because of the
greater interference. The protection circuit ensures the safe
operation of the system.
Outline configuration:
signals definition of the RS485-Block (DB9M) of the USB/PPIM+
pin | signal | Description | |
3 | RxD/TxD+ | Data Line B (RS485 signal positive) |
8 | RxD/TxD- | Data Line A (RS485 signal negative) |
5 | GND | DGND | |
Features and technological index:
support USB / PPIM + operating system: Windows2000/Windows XP
support USB / PPIM + programming software version: STEP7 Micro /
WIN V4.0 and above, without installing drivers, directly use the
USB option in Local Connection.
USB is fully compatible with USB V1.1 norms and USB V2.0
USB bus-powered, 5 VDC, the power consumption is about 100 mA, with
over current protection
optical isolation voltage: 1000 VDC (up to 3000 VDC, it should be
declared when making an order)
USB port with anti-surge protection, RS485 port with 500 W
anti-lightning protection and over current protection
support PPI baud rate: 9.6 Kbps, 19.2Kbps, 187.5Kbps
support the communication protocol: PPI, senior PPI, multi-master
PPI.
support long-distance communications, the largest communications
distance is 2,000 meters (9.6 Kbps) or 1 km(187.5Kbps).
each PC only supports a USB cable programming
temperature: -20 ~ +75
Cable length: three meters, colors: black
Usage:
1, Enter STEP7 Micro / WIN programming software and click "Settings
PG / PC interface", check the "PC / PPI cable (PPI)" and click
"Properties…" button.
2,Select "USB" option in "Local Connection".
3, Set up the Station Parameters settings in "PPI" as following:
Address: 0, Timeout: 1s .
Set up the Network Parameters in "PPI" in accordance with the needs
of you. You can choose any of the following:
Advanced PPI: check the Advanced PPI.
Multiple Master Network: check Multiple Master Network.
General PPI: do not check any of option, which is the default
option.
select a baud rate as the same with the PLC. If you do not know
that the PLC baud rate can be arbitrary choice one.
Click "OK" button to return to the main menu interface.
4, click on the main menu interface of "communication" button to
enter the PLC interface connection, check the "search all baud
rate" box, and then double-click on the "Double-click refresh”.
After a while of searching ,the PLC model And address and other
information will display on the software, it’s means that connect
successfully with the PLC. Click the "confirmation" button to
conduct upload, download, and other operating.
Note: To communicate with the latest introduced Siemens S7-200CN
CPU; the following conditions must be met:
1, Programming software version: STEP7 Micro /WIN V4.0 SP3 and above.
2, Set up the programming software as Chinese state.
