EIP Protocol
PLX30 Series
User Manual
Ethernet and Serial Gateways
Page 84 of 200
ProSoft Technology, Inc.
September 19, 2012
PLC-5 Sub-Element Fields
This section contains information specific to the PLC-5 processor with relation to
the PCCC command set. The commands specific to the PLC-5 processor contain
a sub-element code field. This field selects a sub-element field in a complex data
table. For example, to obtain the current accumulated value for a counter or
timer, the sub-element field should be set to 2. The tables below show the sub-
element codes for PLC-5 complex data tables.
Timer / Counter
Code
Description
0
Control
1
Preset
2
Accumulated
Control
Code
Description
0
Control
1
Length
2
Position
PD*
Code
Description
0
Control
2
SP
4
Kp
6
Ki
8
Kd
26
PV
*All PD values are floating point values, so they are two words long.
BT
Code
Description
0
Control
1
RLEN
2
DLEN
3
Data file #
4
Element #
5
Rack/Grp/Slot
MG
Code
Description
0
Control
1
Error
2
RLEN
3
DLEN