Rockwell Automation 193-EC4 EC4 Current Monitoring Relay User Manual - Manual (Page 55)

56 Rockwell Automation Publication 193-UM011A-EN-P - September 2010
Chapter 4 DeviceNet Node Commissioning
Choosing the size and format of the I/O data that is exchanged by the EC4
Current Monitoring Relay is done by selecting Input and Output Assembly
instance numbers. Each assembly has a given size (in bytes). This instance
number is written to the Input Assembly and Output Assembly parameters. The
different instances/formats allow for user programming flexibility and network
optimization.
Mapping to the Scanner’s Scan List
The Automap feature available in all Rockwell Automation scanners
automatically maps the information. If the default I/O Assemblies are not used,
the values must be changed in the scanner’s Scan List.
Do this by selecting “Edit I/O Parameters” on the Scan List tab of the scanner.
The following screen (see Figure 31 -) then appears.
Table 15 - Instance 105 – E3 Plus Default Consumed I/O Assembly
Instance 103 E3 Plus Default Output Assembly
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Remote
Trip Fault
Reset Out B Out A
IMPORTANT The Output Assembly and Input Assembly parameter values cannot be
changed while the EC4 Current Monitoring Relay is online with a
scanner. Any attempts to change the value of this parameter while
online with a scanner will result in the error message “Object State
Conflict”.