G.3. PXMCM Com 0 and Com 1 RS485 bias resistors (Terminals CM3,
Each RS485 link requires a set of fail safe bias resistors to guarantee that the line goes to
a marked state while the line is idle.
The meter convention is to set the 750 ohm bias resistors at the Master node only.
• The RS485 Com ports on the PXMCM card default to Slave functions, therefore the
factory default jumper postion is N for no bias.
• Com 0 jumpers are set to N for use on the display’s network.
• Com 1 can be programmed to be a Master Gateway. This requires changing the posi-
tons of jumpers C1A and C1B from N to Rb.
• To change the jumper position, the PXMCM board must be removed from the meter.
See general card removal guidelines.
• There are two bias resistors per port to bias each data line. Both jumpers should be set
to the same position (N or Rb).
• The jumpers designators are stenciled as C0 A and C0 B; C1A and C1B. Positions N
are for not engaged and positions Rb are for engaged. See illustration on the following
page.
• Com 0 has jumpers C0 A and C0 B
• Com 1 has jumpers C1A and C1B
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G Standard Cards
Summary of Contents for Power Xpert PXM 4000
Page 1: ...User and Installation Manual IM02601004E Power Xpert PXM 4000 6000 8000 ...
Page 8: ...Page vi IM02601004E www eaton ...
Page 19: ...www eaton com IM02601004E Page 11 1 Introduction ...
Page 24: ...Page 16 IM02601004E www eaton ...
Page 36: ...Page 18 IM02601004E www eaton com 2 Quick Start Guide for the Meter Module ...
Page 45: ...www eaton com IM02601004E Page 37 3 Installation 3 8 MeterDimensions ...
Page 46: ...Page 38 IM02601004E www eaton 3 Installation Dimension Con t ...
Page 47: ...www eaton com IM02601004E Page 39 3 Installation Dimension Con t ...
Page 48: ...Page 40 IM02601004E www eaton 3 Installation Dimension Con t ...
Page 53: ...www eaton com IM02601004E Page 45 3 Installation ...
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Page 75: ...www eaton com IM02601004E Page 67 4 Introduction to Web Server Screens ...
Page 76: ...Page 68 IM02601004E www eaton 4 Introduction to Web Server Screens ...
Page 86: ...Page 78 IM02601004E www eaton 5 Introduction to the Local Graphical Display ...
Page 108: ...Page 100 IM02601004E www eaton 6 Functions on the Web Server Pages ...
Page 128: ...Page 120 IM02601004E www eaton 7 Functions on the Graphical Display ...
Page 164: ...Page 156 IM02601004E www eaton 8 Setup on the Web Server Pages ...
Page 198: ...Page 190 IM02601004E www eaton A MODBUS Communication ...
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Page 252: ...Page 244 IM02601004E www eaton D Diagnostics ...
Page 254: ...Page 246 IM02601004E www eaton D Diagnostics ...