DirectLogic Automation - SA Instrumentation & Control Buyers' Guide (IBG)

Grey, Jeni Admin Manager admin@directlogic.co.za	Ilsley, Sherrill International Accounts mail@directlogic.co.za	Ilsley, Winston Owner wgsi@directlogic.co.za
Malangu, Joanna Housekeeper	Mtshweni, Jacob Repairs techsupport@directlogic.co.za	van der Westhuizen, Andre Tech Support support@directlogic.co.za
Wiese, Pieter Product Sales sales@directlogic.co.za

Imputel Technologies
(Sole Agency)

Indusoft
(Shared Agency)

Koyo (Directlogic PLCs)
(Sole Agency)

Maple Systems
(Shared Agency)

Protech Systems
(Sole Agency)

Weintek
(Shared Agency)

Section - Computers & Software
–+ Computers & peripherals
-Computers
- desktop
- servers
- workstations
-Industrial computers
- Board level
- Compact, embeddable (PC/104, PCI, ISA bus) modules
- Explosion protected
- Flat-panel
- Pentium architecture
- PLC plug-in
- Rackmount
- RISC architecture
- Wall mounted, embeddable
- x86
-Input devices
- Keyboard/video/mouse (KVM) extenders & switches
- Keyboards
- Mice, trackerballs
- Network interfaces (see I/O table)
- Touchscreens
-PC function cards, modules
- Graphics accelerator
- IEEE-488 (HPIB)
- Mass storage magnetic
- Memory, solid state disk
-Peripherals
- CRT/LCD terminals
- Monitors/display systems
–+ I/O sensor/computer interfacing
-Communication medium
- Copper
- Optical fibre
- Radio
-Communication standard
- Ethernet/IP
- Modbus
- RS232/485/422
-I/O blocks/modules
-Mounting methods
- DIN rail
- Panel/rack mount modules
- Plug in cards
-Operating features
- Diagnostic capability
- High temperature
- Intrinsically safe
-Signal modules
- Analog
- Digital
- Mixed
–+ Industrial software for PCs
-Applications
- Alarm management
- Asset management
- Calibration management
- Data acquisition, analysis
- Direct control
- Drivers
- DSP (digital signal processing) software
- Dynamic link to libraries (DLL)
- Link to Windows databases
- Manufacturing execution systems (MES)
- Operator interface
- Programming languages
- Soft PLC
- SPC/SQC
- System simulation/PID tuning
-Datasharing
- DDE
- OLE
- OPC clients
- OPC servers
-Language
- C, Pascal, etc
- MS Visual Basic
- OOP (e.g. Visual C++)
- PLC languages
- Provides OCXs
-Network communications
- IPX/SPX
- TCP/IP
-Operating Systems
- .Net
-Operating systems
- Linux
- Windows 2000
- Windows 95/98
- Windows CE
- Windows NT
- Windows XP
Section - Data Acquisition & Remote Control
–+ Data acquisition & logging systems
-Ethernet-based systems
-Machine health monitoring
-PC based data acquisition
- A-D conversion boards
- automatic data acquisition
- data acquisition cards
- distributed data acquisition
- intranet system
- presentation/analysis software
-Recorders
- events
–+ Scada - Supervisory Control & Data Acquisition
-Alarms
-Integration into MES and ERP systems
-Number of I/O points
- 0-1024
- 0-32
- 0-512
- 0-64k
- Unlimited
-Number of PLC or I/O drivers
- 0-16
- 16-64
- 64-640
-Operating system
- .Net
- Linux
- Windows 2000
- Windows 95/98
- Windows NT
-Reports
-Standalone version available
–+ Telemetry & remote control systems
-Cable telemetry
- copper wire
- Ethernet LAN
-Radio telemetry
-Remote sensing & control
- cable link
- cellular
- from rotating shaft
- radio link
Section - Miscellaneous Hardware
–+ Terminal blocks for instrumentation & control
-DIN rail-mount
-I/O system
-Patching/cross-connection
-PLC interface
-Pluggable terminal blocks
-Screwed clamp
-Tab connector blocks (panel)
-Thermocouple
Section - Networks for Communication & Control
–+ Industrial networking/communication systems
-4-20mA analog loop
-DCS Data Highway
-DeviceNet
-Ethernet
-Modbus
-Network analysers
- Modbus
- PLC Data Highway
- RS232/422/485
-PLC Data Highway
-Remote I/O
-RS232/422/485
-Universal Serial Bus (USB)
-Wireless (for industrial application only)
Section - Process Control & Manufacturing Technologies
–+ Controllers (standalone)
-Communications
- RS232
- RS422/RS485
-Functionality
- Adaptive gain
- Auto/self tuning
- Cascade control
- Logic
- Maths/calculations
- PID/PD
- Ratio control
- Scaling of I/O
-Inputs
- 0/4-20mA
- mV/V
- RTD
- Thermocouple
-Number of loops
- >16
- 1-16
-Outputs
- 0/4-20 mA
- 0-5V
- mA/mV
- Pulse
- Relay contact
-Visual display
–+ Operator interfaces & annunciators
-Alarm indicators
-Analog panel meters
-Annunciator panels
-Digital panel meters
-Digital process indicators
-Displays
- Bar graphs
- Characters
- CRT
- Display wall (control room)
- LCD, flat-panel
- Programmable message 
- Touchscreens
-HMI
-Keyboards
- Custom
- Desktop
- Flat-panel
- Rackmount
- Sealed
-Keypads
- Harsh-environment
- Key-switch
- Membrane
- Outdoor (weather-proof)
–+ PLCs - Programmable Logic Controllers
-Analog I/O
-    1-16
-   17-64
-   65-256
-  257-512
- more than 512
-Digital I/O
-    1-16
-    17-64
-    65-256
-   257-512
-  more than 512
-Display
-Multiprocessor
-Networking organisation
- Host-to-PLC link
- PLC-to-PLC
- Remote I/O
-Networking
- 20 mA loop
- Ethernet
- Fieldbus
- PLC-to-PLC
- Proprietary data bus
- Remote I/O
- RS232, RS422, RS485
-Operator interface panel
-PACs - Programmable Automation Controllers
-Programming
- Diagnostic software
- Documenting software
- Function block diagram
- High level (C, Basic, etc.)
- IEC 1131
- Ladder diagram (relay logic)
- Logic diagram
- Sequential function chart
-Scan rate less than 1µs per step
-Scan rate less than 1ms per step
-Scan rate more than 1ms per step
–+ Position/motion control
-Computer interfaces
-Rotary encoders
–+ Temperature measurement
-RTDs (Pt 100, Ni)
-Thermocouples (Type S, T, etc)