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2-12 MS-Connect 210 User’s Manual

Ethernet Port Custom Features

EtherNet/IP Customization

Postamble Processing

The Postamble is useful when a series of unknown bytes defines the end of a packet.

Status

When enabled, all received serial data is buffered and is not transmitted to Ethernet until

the Postamble sequence is detected. A maximum of 470 bytes can be buffered, including

the Postamble.

Postamble String

One to four ASCII characters, 0x01 to 0xFF. Do not use NUL (0x00).

Send Postamble

When enabled, the Postamble string is sent to the Ethernet host.

When disabled, the Postamble string is not sent to the Ethernet host.

Receive Timeout (Total Receive Timeout)

Receive Timeout is the time the host is willing to wait for the total Receive Length. The

module is guaranteed to respond at the end of the timeout whether or not any data has

been received. This ensures a deterministic response time from the module, which helps

the host sustain a consistent polling rate.

This value is definable for a range of

1000 ms

in 1 ms increments. A setting of

disables

the timeout, causing the module to respond immediately.

Receive Idle Timeout (Intercharacter Receive Timeout)

Idle Timeout is the time the host is willing to wait once data is available. Idle Timeout is

useful if a time gap between serial bytes defines the end of a packet.

Idle Timeout is definable for a range of 0 to 255 ms in 1 ms increments. If 0, the Ethernet

module responds immediately once data is available. To be effective, the Idle Timeout

must be shorter than the Receive Timeout. If 255, the Idle Timeout is disabled and the

Ethernet module will wait for the Receive Timeout before responding.

Parameter Status Postamble String Send Postamble

Default Setting N/A CR LF (0x0D 0x0A) N/A

Optional Setting Disabled,

Enabled

One to four characters, with the

exception of NUL (0x00)

Disabled, Enabled

Parameter Timeout (in milliseconds)

Default Setting Always specified

Optional Setting 0 to 1000

0 = Immediate response

Parameter Idle Timeout (in milliseconds)

Default Setting Always specified

Optional Setting 0 to 255

0 = Immediate response with any data

255 = Disabled (Wait until Receive Timeout)

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