128 ● IK DMC-40x0 Command Reference
IK
FUNCTION: Block Ethernet ports
DESCRIPTION:
The IK command blocks the controller from receiving packets on Ethernet ports lower than 1000
except for ports 0, 23, 68, and 502.
ARGUMENTS: IKn where
n = 0 allows controller to receive Ethernet packets on any port
n = 1 blocks controller from receiving Ethernet packets on all ports lower than 1000 except for 0,
23, 68, and 502.
n = ? queries controller for value of IK
USAGE: DEFAULTS:
In a Program Yes Default Value n = 1
Command Line Yes
OPERAND USAGE:
_IK can not be used as an operand.
RELATED COMMANDS:
TH Tell Handles
IH Open new Ethernet handle
EXAMPLES:
IK1 Blocks undesirable port communication
IK0 Allows all Ethernet ports to be used
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