Filter
Top Products
Chapter 5: Communication Wiring
5.1: Communication Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2: RS-232 Connection-Nexus Meter to a Computer . . . . . . . . . . . . . . . 5-5
5.3: RS-485 Wiring Fundamentals (with RT Explanation) . . . . . . . . . . . . . . 5-5
5.4: RS-485 Connection- Nexus Meter to a Computer or PLC . . . . . . . . . . . . 5-8
5.5: RJ-11 (Telephone Line) Connection- Nexus with Internal Modem Option to PC . . 5-8
5.6: RJ-45 Connection- Nexus with Internal Network Option to multiple PC’s . . . . . 5-8
5.7: RS-485 Connection- Nexus to an RS-485 Master (Unicom or Modem Manager) . . 5-9
5.7.1: Using the Unicom 2500 . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
5.8: RS-485 Connectiion- Nexus Meter to P40N, P41N, P43N External Display . . . 5-11
5.9: RS-485 Connectiion- Nexus Meter to P60N External Display . . . . . . . . . 5-12
5.10: Communication Ports on the Nexus I/O Modules . . . . . . . . . . . . . . 5-13
5.11: RS-485 Connection—Nexus Meter to Nexus I/O Modules . . . . . . . . . . 5-14
5.12: Steps to Determine Power Needed . . . . . . . . . . . . . . . . . . . . . 5-15
5.13: I/O Modules’ Factory Settings and VA Ratings . . . . . . . . . . . . . . . 5-15
5.14: Linking Multiple Nexus Devices in Series . . . . . . . . . . . . . . . . . 5-16
5.15: Networking Groups of Nexus Meters . . . . . . . . . . . . . . . . . . . 5-17
5.16: Remote Communication Overview . . . . . . . . . . . . . . . . . . . . 5-18
5.17: Remote Communication- RS-232 . . . . . . . . . . . . . . . . . . . . . 5-21
5.18: Remote Communication- RS-485 . . . . . . . . . . . . . . . . . . . . . 5-21
5.19: Programming Modems for Remote Communication . . . . . . . . . . . . . 5-22
5.20: Selected Modem Strings . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.21: High Speed Inputs Connection . . . . . . . . . . . . . . . . . . . . . . 5-23
5.22: Five Modes of Time Synchronization . . . . . . . . . . . . . . . . . . . 5-24
5.23: IRIG-B Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Chapter 6: Using the Nexus External Displays
6.1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.2: Nexus P40N, P41N, P43N LED External Display . . . . . . . . . . . . . . . 6-1
6.2.1: Connect Multiple Displays . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.2.2: Nexus P40N Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.3: Dynamic Readings Mode . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.4: Navigational Map of Dynamic Readings Mode . . . . . . . . . . . . . . . . 6-5
6.5: Nexus Information Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.6: Navigational Map of Nexus Information Mode . . . . . . . . . . . . . . . . 6-7
6.7: Display Features Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
6.8: Navigational Map of Display Features Mode . . . . . . . . . . . . . . . . . 6-9
6.9: Nexus P60N Touch Screen External Display . . . . . . . . . . . . . . . . . 6-10
6.10: Navigational Map for P60N Touch Screen External Display . . . . . . . . . 6-18
Chapter 7: Transformer Loss Compensation
7.1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.2: Nexus 1250/1252 Transformer Loss Compensation . . . . . . . . . . . . . . 7-3
7.2.1: Loss Compensation in Three Element Installations . . . . . . . . . . . . . . 7-4
7.2.1.1: Three Element Loss Compensation Worksheet . . . . . . . . . . . . . . . 7-5
Chapter 8: Nexus Time-of-Use
8.1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.2: The Nexus TOU Calendar . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Electro Industries/GaugeTech
Doc # E107706 V1.25 vi