OPC Interface Package
DAQOPC/DAQOPC for DARWIN
Functions
Function Specifications
The DAQOPC and DAQOPC for DARWIN provide the following OPC-compliant interfaces:
- Data Access (DA) server functions
DA servers read/write process data having an item ID as the identifier, through communication input channels.
System Configuration
- Server/Client Composition
DAQOPC/DAQOPC for DARWIN users (OPC clients) can be configured in the following two ways:- OPC clients coexist with DAQOPC (for DARWIN) on the same PC
- OPC clients coexist on a host computer (Windows 2000 or Windows XP)
- Multiple Clients
Multi-client configuration Access is possible from multiple OPC clients to one - Multiple Servers
Multi-server configuration Access is possible from OPC one client to another multiple DAQOPC (for DARWIN).
Configuration Examples
Supported Models
DXA410 DAQOPC*
| Model | Communication interface |
|---|---|
| DX100/DX200/DX100L/DX200C/ CX1000/CX2000/MV100/MV200 |
Ethernet, RS-232, RS-422A/485 |
| DX100P/DX200P | Ethernet |
*Not supporting Daqstation® DXAdvanced DX1000/DX2000.
DP410 DAQOPC for DARWIN
| Model | Communication interface |
|---|---|
| DA100/DC100/DR130/ DR231/DR232/DR241/DR242 |
Ethernet, RS-232, RS-422A/485 |
Application Capacity
The DAQOPC and DAQOPC for DARWIN provide the following OPC-compliant interfaces:
- Maximum number of linkable clients: 100
- Maximum number of group objects: 1000
- Maximum number of registrable item IDs: 1000/group
- Maximum number of item IDs for which cache is updated: 100000
- Cache updating interval: 1000 to 3600000 ms (1 s to 1 hr)
- Maximum number of linkable units:
- DAQOPC (DXA410)...24
- DAQOPC for DARWIN (DP410) ...16
Operating Environments
PC System Requirements
- Windows 2000 SP3/SP4 or Windows XP Professional SP1/SP2 (OPC Interface Package and Windows must use the same language.)
- Machine:
PC/AT-compatible with Intel Pentium 300 MHz or faster (Windows 2000)/Pentium 800 MHz or faster (Windows XP) - Main Memory: 256 MBytes or greater
- Hard Disk: 1 GBytes or greater
- Communication Device: Ethernet-ready network card
VB and VC++ versions
- User application and DAQOPC (for DARWIN) on the same PC
DAQOPC (R3.01): VB6.0, VC++6.0 SP5
DAQOPC for DARWIN (R3.01): VB6.0, VC++6.0 SP5 - User application and DAQOPC (for DARWIN) on different PCs
DAQOPC (R3.01): VB5.0/6.0, VC++5.0/6.0
DAQOPC for DARWIN (R3.01): VB5.0/6.0, VC++5.0/6.0
Supported OPC Specifications
DA Server
- OPC Data Access Custom Interface Specification Version 2.0
- OPC Data Access Automation Specification Version 2.0
Model Codes
| Model Codes | Description | Note |
|---|---|---|
| DXA410-02 | DAQOPC Basic Version | Read for Measured value/Math data/Alarm Status, Read for Control Parameters (CX1000/CX2000), Write for Communication Input Data, etc. |
| DXA410-04 | DAQOPC Advanced Version | Read for Measured value/Math data/Alarm Status, Read&Write for Control Parameters (CX1000/CX2000), Write for Communication Input Data, Alarm setting / Record operation / Math operation / Write message (other than DX100P/DX200P), etc. |
| DP410-13 | DAQOPC for DARWIN | Read for Measured value/Math data/Alarm Status, Write for Communication Input Data, Command DO operation |