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ECD - Equipment Command Segment

The equipment command segment contains the information required to notify the receiving component what is to happen.

HL7 Attribute Table - ECD - Equipment Command Segment
Seq# DataElement Description Must Implement Flags Cardinality Length C.LEN Vocabulary DataType
1 01390 Reference Command Number SHALL = [1..1] 10 NM
2 01391 Remote Control Command SHALL [1..1] CWE
3 01392 Response Required [0..1] [1..1] ID
4 01393 Requested Completion Time SHALL NOT W [0..0]
5 01394 Parameters [0..*] TX

ECD-1: Reference Command Number (NM) 01390

Definition: This field contains the unique identifier for this particular command that should be used by the various components for future referral to this command. It is similar to the concept of MSH-10 Message Control ID, but at the equipment command/response level. This number is generated by the originator of this command.

ECD-2: Remote Control Command (CWE) 01391

Definition: This field identifies the command that the component is to initiate. Refer to User-defined Table 0368 – Remote Control Command in Chapter 2C, Code Tables, for valid values. Refer to LECIS standard for details.

ECD-3: Response Required (ID) 01392

Definition: This field identifies the mode of synchronization that is to be used in relation to the execution of the command. "Y" (Yes) means that the response is required immediately after execution; "N" (No) response is not required at all. Refer to HL7 Table 0136 – Yes/no Indicator for valid values.

ECD-4: Requested Completion Time

Attention: As of version 2.5 this fieldwas retained for backward compatibility only and withdrawn as of v2.7. The TQ data type was deprecated; see Chapter 2A, section 2.A.81. Instead use the "Explicit time" (TQ1-4) or "Relative Time and Units" (TQ1-5) fields of the TQ1 segment in a message using ECD segment.

ECD-5: Parameters (TX) 01394

Definition: This field identifies the parameters of the command (if they are not included in a separate segment(s)).

Note:     Elements of this segment (or other elements not defined here) may be required for certain vendor-specific equipment such as centrifuges, aliquoters, sorters, uncappers, recappers, automated storage units, etc.