User manual

IEC61131 User and Reference Manual
April 22, 2008
567
Function code 20 (Enable Unsolicited Messages) for class 1, 2, 3 objects only.
Function code 21 (Disable Unsolicited Messages) for class 1, 2, 3 objects only.
Object 41, variation 1 (32-bit analog output block)
Maximum Data Link Frame Size (octets):
Transmitted 292
Received (must be 292)
Maximum Application Fragment Size (octets):
Transmitted 2048
Received 2048
Maximum Data Link Re-tries:
 None
 Fixed at
 Configurable, range 0 to 255
Maximum Application Layer Re-tries:
 None
 Configurable, range 0 to 255
Requires Data Link Layer Confirmation:
 Never
 Always
 Sometimes If 'Sometimes', when?
 Configurable for Always or Never
Requires Application Layer Confirmation:
 Never
 Always (not recommended)
 When reporting Event Data (Slave devices only)
 When sending multi-fragment responses (Slave devices only)
 Sometimes If 'Sometimes', when?
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