Automationdirect.com DirectLOGIC DL205 Series User Manual page 496

ECDHCPQ Example
Rung 1: The ECOM100 Config IBox is responsible for coordination/interlocking of all
ECOM100 type IBoxes for one specific ECOM100 module. Tag the ECOM100 in slot 1 as
ECOM100# K0. All other ECxxxx IBoxes refer to this module # as K0. If you need to move
the module in the base to a different slot, then you only need to change this one IBox. V400
is used as a global result status register for the other ECxxxx IBoxes using this specific
ECOM100 module.V401 is used to coordinate/interlock the logic in all of the other ECxxxx
IBoxes using this specific ECOM100 module. V402-V502 is a common 130 byte buffer
available for use by the other ECxxxx IBoxes using this specific ECOM100 module.
1
NOTE: An ECOM100 IBox instruction is used without a permissive contact. The top line will be identified in
BOLD italics, and the instruction name and ID will be in BOLD characters.
Rung 2: On the 2nd scan, read whether DHCP is enabled or disabled in the ECOM100 and
store it in C5. DHCP is the same protocol used by PCs for using a DHCP Server to
automatically assign the ECOM100's IP Address, Gateway Address, and Subnet Mask. The
ECDHCPQ is leading edge triggered, not power-flow driven (similar to a counter input leg).
The command to read (Query) whether DHCP is enabled or not will be sent to the
ECOM100 whenever the power flow into the IBox goes from OFF to ON. If successful, turn
on C100. If there is a failure, turn on C101.
Chapter 5: Intelligent Box (IBox) Instructions
ECOM100
ECOM100#
Slot
Status
Workspace
Msg Buffer (65 WORDs)
DL205 User Manual, 4th Edition, Rev. B
ECOM100 Config
IB-710
K0
K1
V400
V401
V402-502
5–279
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