![Testing:](/images/new-backgrounds/182007/18200747x1.webp)
EnerVista PMCS 6.15 Quick Start Guide
UR 1.1.1.2 | 2000ms |
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Multinet 1.1.1.3 | 1500ms |
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*ML750 1.1.1.4 | 1500ms |
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2000ms
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Enervista PMCS
Enervista PMCS incorporate device ‘wizards’ or
Please note that all the screens in a Enervista PMCS system typically require multiple modbus requests to populate the screens. Add in the fact that many other devices are typically
RUNNING A DEDICATED MASTER REQUESTING A CONSTANT 1 OR 2 MODBUS BLOCKS FROM A SINGLE DEVICE ON A NETWORK. THIS IS A HIGHLY CUSTOMIZED FUNCTION REQUIRING CAREFUL PLANNING AND DESIGN.
Testing:
For systems testing and evaluation it is frequently impractical or impossible to have a test bed of all the required devices. To this end the Enervista Device Emulator has been designed. This is a Modbus TCP/IP/RTU software slave designed to emulate all the GE Multilin device types, their register maps and real device values both dynamic and static. It will accurately emulate all required network architectures in both size and timing characteristics. With it an integrator or end user can accurately bench test a project for both operation and update times. Virtual network configurations can be created and adjusted/changed before any physical hardware is installed. This software can be purchased thru your local GE Multilin rep.
Conclusion:
Before any network is designed or constructed a careful examination of needed data update performance must be done. Each site and customer is unique. Some customers may require data refresh times in the ten’s of seconds while other require less than a second. Any update requirement within the physical confines of Modbus can be done but require correct network layout and a thorough knowledge of what specific data is needed from each specific device type. This appnote has also examined the differences between Modbus TCP/IP and Modbus RTU. Integrators and users must be especially cogent of the fact that use of Modbus TCP/IP and Ethernet DOES NOT ITSELF INCREASE PERFORMANCE TO ANY NOTICABLE EXTENT. Much more critical is HOW MANY DEVICES ARE ON THE
SAME NETWORK AND HOW MUCH IS POLLED FROM EACH ONE.
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