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ETH-PPI=CP243i+wincc Direct connection function (ie no PC ACCESS).
It enables you to connect to the S7-200 with the driver [TCP/IP(auto)] that comes with WinCC.
It is simple and convenient to use in engineering applications.
Reduces communication instability caused by the use of OPC [PC ACCESS]! I, Q, M, DB1 (remember to be DB1) in WinCC correspond to I, Q, M, V in s7-200
It is very simple to use and can be used immediately after filling in the IP address. At the same time, the S7-200 programming software MicroWin 4.0 can also work at the same time.
It can upload and download the s7-200 through ETH-PPI, and debug and monitor it online.
The function is quite powerful. Siemens can’t do it at the same time! In addition, Siemens Prodave 6.0 It is not possible to connect to the S7-200, but with the ETH-PPI converter, the S7-300 TCP protocol is completely feasible! This is the best way to solve problems for customers who like programming (especially in data acquisition projects). !
Advantage:
1. Connect wincc without OPC, you can connect directly to enhance communication stability.
2. You can use Siemens Prodave 6.0 and VB to develop your own S7-200 with upper software.
Note: If you don’t need wincc to connect directly or use Prodave to develop your own S-200 host software, you can choose our CP243i because it is relatively cheaper.
Rail type ETH-PPI: Simultaneous rail mounting and screw mounting.
Simple ETH-PPI: the function is the same as above, but the shape is relatively small
Hardware connection method:
1) Line type: that is, a PLC (s7-200 and a host computer (computer), directly connected by a crossover line (RJ45 network cable).
2) Star mode: one PLC (s7-200) and two upper computers (computers) or multiple PLCs (S7-200) and one upper computer (computer) or multiple PLCs (s7-200) and Two upper computers (computers), and an Ethernet switch is required in the middle.
Connect the switch to each device with a direct cable (RJ45 network cable).
The most common connection method is line type. Use a good network cable communication distance of up to 100 meters, too far distance to add a pair of fiber optic transceivers and fiber optic cable, distance up to 4 kilometers, within 200 meters can be added in the middle of a switch, play a relay role .
ETH-PPI converter settings:
The parameter setting of ETH-PPI is set by IE browser. At this time, the PLC connected to ETH-PPI converter should be powered on (Note: ETH-PPI converter is powered by PLC) and ETH-PPI should be used at the same time. Connect to the computer network cable (line type crossover cable (RJ45 network cable) star type with two direct connection lines (RJ45 network cable) connected to the ETH-PPI and computer by the switch) Set the computer IP address to (192.168.1.100), Mask (255.255.255.0), gateway (192.168.1.1), finally enter 192.168.1.222 in the IE browser of the computer to enter the main menu of ETH-PPI: Click [Parameter Settings/Display] to enter the setting screen.
A detailed description of each parameter can be found in the following:
[Because ETH-PPI can be set automatically, you don’t need to fill in the parameters below, but sometimes you need to change the IP value and ETH-PPIi station number]
A, EHT-PPI communication converter IP: Its segment address must be the same as the connected computer, that is, the first three items are the same as the fourth phase.
Example 1: Computer IP (192.168.1.100), mask (255.255.255.0), gateway (192.168.1.1), converter IP (192.168.1.10).
Example 2: Computer IP (200.156.8.108), mask (255.255.255.0), gateway (200.156.8.1), converter IP (200.156.8.16).
Example 3: Computer IP (200.202.9.126), mask (255.255.255.0), gateway (200.202.9.1), converter IP (200.202.9.18).
Note: IP is unique in the same network and cannot be the same. The computer also sets the corresponding IP address, mask, and gateway (in the same segment as the converter).
Once the IP address of the converter is set, as long as the IP address, mask and gateway of the computer are in the same segment (ie the same as the first three items, the fourth phase is different), the EHT-PPI communication is directly entered into the browser of the computer. The IP address of the converter, and the EHT-PPI converter does not communicate with the host computer at this time, it will enter the main menu of the ETH-PPI converter. Of course, you can also type 192.168.1.222 in the browse of the computer. It will also enter the main menu of the ETH-PPI converter (provided that: the ETH-PPI converter is not connected to the host computer online and the IP address, mask and gateway of the computer are in the same segment, and only the network is in the same network. An ETH-PPI converter, the other ETH-PPI converters must be disconnected from the network).
B, ETH-PPI communication converter MAC: a total of six items, filled with hexadecimal numbers (Hex:0..9, A, B, C, D, E, F) The first item is 0 (even if you fill When entering other values, the converter will also change it to 0), and the other 5 items can be filled in as you like, and cannot be the same as other MACs in the network.
Note: The MAC is unique in the same network and cannot be the same.
The above is the relevant settings of the Internet network, the following is the relevant settings of the PPI bus [Because ETH-PPI can be set automatically, you do not need to fill in the parameters below]:
C, PPI baud rate:
Refers to the communication rate of the PLC (S7-200) PPI interface connected to the ETH-PPI converter (set in the configuration of the S7-200, see Siemens STEP7 MicroWiin Programming Manual). There are three baud rates: 9600, 19200 At 187.5K, the default baud rate for PPI is typically 9600.
Note: It is strongly recommended that the user set the PPI communication baud rate of the PLC (S7-200) to 187.5K [MicroWin200], -> communication port setting –> download to S7 – because of this, you can get a higher data refresh frequency.
D, PLC_PPI station number: [this parameter does not need to be set]
Refers to the PPI station number of the PLC (S7-200) connected to the ETH-PPI converter (set when configuring the S7-200, see West
The STEP7 MicroWin Programming Manual), the default value of the PPI station __________ is 2. You can also check in the “PPI Communication Status Display”
Look, the mark “X” represents the actual station number of the PPI on the bus, and then fill it in the “Parameter Settings / Display” menu. Of course, if you already know the station number of the connected PPI, you can write it directly without checking it.
E, ETH-PPI station number: refers to the station number of the ETH-PPI converter itself, as long as it is not the same as other station numbers on the bus, generally set to 0, this parameter needs to be set manually.
F, the highest PPI station number [this parameter does not need to be set]: refers to the maximum station number allowed on the PPI bus, which can select 4 values, 15, 31, 63, 126.
Example 1: PLC_PPI station number = 2, ETH_PPI station number = 0, the highest PPI station number should be selected 15
Example 2: PLC_PPI station number = 10, ETH_PPI station number = 108, the highest PPI station number should be selected 126
G, humanized products: Because ETH-PPI fully considers the feelings of beginners, you can use it almost without modifying the parameter settings. ETH-PPI is a fully automatic product with high artificial intelligence.
After the parameter settings are submitted, if you want to enter the main menu again, it is best to type c> arp -d in the cmd window (delete calculations)
The IP/MAC table has been reserved in the machine, so that the newly changed IP/MAC of the CP243i converter does not conflict with the old address.
MicroWin connection settings
1. Open MicroWin and double-click [Set PG/PC Interface] as shown below:
2. Select [TCP/IP(Auto)->XXXX (Network Card Name)] in the figure below, and then press [OK].
3. Double-click [Communication] in the figure below:
4. Fill in 192.168.1.10 in [Remote:] in the figure below, then directly press the Enter key [Remember].
After MicroWin is set up, you can now program the Siemens S7-200 with MicroWin!
WINCC connection settings
ETH-PPI=CP243i+wincc Direct connection function [ie PC ACCESS is not required]. It enables you to connect to the S7-200 with the WinCC’s own driver [TCP/IP(auto)], which makes it simple, convenient and practical in engineering applications. Reduced communication instability caused by the use of OPC [PC ACCESS]!
1. Open wincc and select the driver, see the following figure: WinCC driver TCP/IP – [mouse right] – system parameters – unit – TCP / IP (Auto)
2. WinCC driver TCP/IP – [mouse right] – new driver connection – attribute – IP address is filled in [192 .168 . 1 . 10].
I, Q, M, DB1 in WinCC (remember to be DB1) correspond to I, Q, M, V in s7-200
S7-200 WinCC
V3.0 binary variable DB1.D3.0
V3.1 binary variable DB1.D3.1
……
V3.7 binary variable DB1.D3.7
VB60 No (with) symbol 8 digits DB1.DBB60 VW61 No (with) symbol 16 digits DB1.DW61 VD63 No (with) symbol 32 digits DB1.DD63 VD67 32-bit floating point number IEEE 754 DB1.DD67 M10.3 Binary Variable M10.3
Q0.5 binary variable A0.5
QW3 no (with) symbol 16 digits AW3
I0.2 binary variable E0.2
IB6 no (with) symbol 8-digit EB6
wifi eth-ppi manual
Connection method: (It is best to disable the wired network card during use)
1: Receive wireless signal and enter the password. Connected to the wifi signal
Wifi signal name: wifi ETH-PPI-001
Connection password: 12345678
2: Set the IP address and gateway of the computer’s wireless network card (IPV4) to:
IP: 192.168.1.100
Subnet mask: 255.255.255.0
Gateway: 192.168.1.1
4: Open the sp9 software. Set PG/PC interface, find TCP/IP (AUTO)–the name of your computer’s wireless network card—attribute—do not assign IP address automatically
Enter the IP address of the module in the remote IP address field: 192.168.1.10 ,Save
5: Double click refresh to use normally
When setting module parameters with IE browser:
1: It is best to use IE browser, version 8.0 or above, do not use 360, 2345, QQ, and other garbage browsers
2: Use a crossover cable to connect the module directly to the computer
3: Using WIN7 system, it is best not to use XP (now XP is a compact version, it is difficult to use)
4: The IP address of the computer must be set to: 192.168.1.100
The subnet mask is: 255.255.255.0
The default gateway is: 192.168.1.1
5: The wireless network card must be disabled or the WIFI switch must be turned off.
6: The ETH-PPI module is not connected to WinCC and STEP7 online, and the IP address, mask and gateway of the computer are in the same segment, and there is only one ETH in the network.
The PPI module, other ETH_ppI modules must be disconnected from the network.
7: IE browser access address: 192.168.1.222
8: IE should not set the proxy server. If there is proxy setting, please close the proxy server first.
Wincc connection settings:
Matters needing attention: 1, often customers say that data refresh is slow, this is mainly because customers will brush the data
The new setting is [according to the change], and the correct setting is 250ms or 500ms or 1s. If the customer incorrectly selects [according to the change], the data refresh cycle becomes slower than 5s~10s, instead of the variable one, it will be refreshed immediately! Remember!
When running the Siemens industrial control software, the solution “The port is occupied or another program is opened” appears.
The files SIMATIC IEPG Help Service and SIMATIC S7DOS Help Service are disabled by the anti-virus software.
Solution:
1. Right click on the computer, left click on Administration -> Services and Applications -> Services -> then activate “SIMATIC IEPG Help Service”; if it is not activated,
Description is blocked by the anti-virus software, add the s7oiehsx.exe file to the “antivirus software” executable trust table, re-run “SIMATIC IEPG Help Service”, finally restart the computer and restart STEP 7.
2. Left click on the mouse -> Run -> services.msc to activate “SIMATIC IEPG Help Service”; if it is not activated, it is blocked by antivirus software
Run, add the s7oiehsx.exe file to the “antivirus software” executable trust table, re-run “SIMATIC IEPG Help Service”, and finally restart
Computer, restart STEP 7.
3. Right click on the computer, left click on Administration -> Services and Applications -> Services -> then activate “SIMATIC S7DOS Help Service” to start the service.