Sulzer control system PCx
The PCx is a technically very advanced and powerful control system. The system is scalable, flexible and modular.The main difference between PCx and conventional PLC systems is the simplicity of installation and configuration.
The PCx has extensive control functions and is fitted with communication (RS 232 / 485), alarm handling, log capability (digital and analogue), stand alone control and decision making system.
The system can both control the application and be configured on-line simultaneously. PCx can be configured using the AquaProg software either via fixed line or dial-up communication.
The programming is very easy and time saving as all functions used for pumps, mixers, valve or cleaning device operation are predefined and can be linked and configured either on the operator panel or by the Windows configuration software AquaProg, with a screen similar to Windows® Explorer.
AquaProg also includes functions for reading actual signal status, read alarm list, reset alarms, up and download configuration etc.
Features
- Controls up to 16 pumps
- Modular design
- Simple installation and configuration by predefined software modules
- Multiple communication possibilities
Multiple communication possibilities
Handling different types of communication is one strength of PCx. The unit handles communication via fixed line, dial-up, radio, LAN etc. It can also handle for instance dial-up communication via one com port to the SCADA system and using com port 2 with multi drop communication to other units.
PCx is, as the name indicates, a central unit with built-in I/O and can be expanded with separate I/O units type PCxp. When fully expanded with PCx and 7 PCxp units, the system handles the following I/O:
- 128 digital in e.g. switches, contactors, actuators etc.
- 64 digital out e.g. for control of pumps, mixers, valves etc.
- 32 analogue in e.g. HSC level sensors, flow meters etc.
- 16 analogue out e.g. frequency converters etc.
Examples of functions in PCx
- Pump control
- Pump capacity and flow calculations
- Motor and valve control
- Alarm handling
- Log functions
- GSM/GPRS/SMS-handling
- PID-regulators
- Timers and counters
- Sequence control
- Data register cross reference file
Technical specifications
| System |
|
| Ambient operating temp |
20 ºC to + 70 ºC |
| Ambient storage temp |
-40 ºC to + 85 ºC |
| Humidity |
0-95% RH non condensing |
| Supply |
9-34 VDC (max 0.2 A at 24 VDC), battery back-up of memory and clock |
| Analogue logging |
32 channels up to 99 days/channel |
| Digital logging |
I/0 and up to 4096 alarm events |
| Configuration |
Via programming unit PCxop or from PC via AquaProg software |
| Protocols |
Comli and ModBus |
| Program memory |
Flashprom |
| Log and work memory |
RAM, internal batt. back-up |
| RTC |
Full data & time, internal batt. back-up |
Technical specifications
| Central unit PCx and I/O-expansion PCxp |
|
| Mounting |
DIN-rail 35 mm |
| Degree of protection |
IP 20 |
| Housing material |
Aluminium |
| Communication |
RS 232/485 (115 200 baud) |
| Indication |
LED-diodes |
|
Analogue inputs
Signal
Input resistance
Resolution
|
4
0/4-20 mA
50 ohm
20 bits (0.025 μA)
|
|
Analogue outputs
Signal
Resolution
Max load
|
2
0/4-20 mA
14 bits (1 μA)
1000 ohm (at 24 VDC)
|
|
Digital inputs
Signal
Indication
|
16
9-34 VDC (max 3.3 mA at 34 VDC) galvanically isolated via optocoupler in one group
LED-diodes
|
|
Digital outputs
Signal
Load
Indication
|
8
9-34 VDC (supply)
1A/output, max 4 A/module
LED-diodes
|
Technical specifications
|
Panel mounted operator panel PCxop and
Portable operator panel PCxoph
|
|
| I/0-module connection |
CAN-bus, max 250 m cable |
| Display |
20 characters/4 rows with backlight |
| Keyboard |
16 keys for configuration and parameter setting |
| Status LEDs |
4 system 16 user configurable |
