Description of ChemWeb Server
The ChemWeb Server is a compact standalone PC which is fitted with an integrated analog, ISDN modem in addition to the main memory, an internal flash drive for programs and data, a clock module and a number of hardware interfaces. Serial connection possibilities such as RS232 and RS485 are part of the interfaces via which application hardware is controlled. An Ethernet connection that allows the device to link to a network is also available.
| Power | Ext. | IN 1 | IN 2 | COM 0 - W&T | |||||||||||||
| Supply | Reset |
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| A B A RS485 enable |
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GND | 50...80VDC | 10...60VDC | GND | GND | Reset | GND | IN1 | IN2 | GND | Termination | Symm(+) | B | GND | |||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
Power |
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Reset | Network |
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OH |
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DCD | Status |
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| ChemWeb |
COM1 RxTx |
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| Server |
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| CompactFlash |
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| COM 1 | COM 0 |
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20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 |
LA1 | LA | LB | LB1 |
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| GND | CTS | RTS | RXD | TXD | GND |
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| REL2 | REL1 |
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TEL/ISDN |
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| COM 1 - RS232 | ||||||||
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| Nullmodem |
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This drawing on the proceeding page shows the ChemWeb Server with analog or ISDN modem.
Power Supply
The ChemWeb Server is equipped with a very flexible power supply input and accepts DC voltages from 10 to 80 volts. For layout, observe the differing current consumption depending on the type (see technical data)!
Terminal No.: | Designation: | Explanation: |
1 | GND | Ground |
2 | 50...80 V DC | Voltage input + (range from 50 to 80 volts) |
3 | 10...60 V DC | Voltage input + (range from 10 to 60 volts) |
4 | GND | Ground |
The negative pole of the power supply must be connected to GND (protective conductor)!
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