Rockwell-automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command Manual de usuario descargar pdf (Pagina 150)

9–12 Diagnostic Counters

Publication

17706.5.16 - October 1996

This counter byte Counts the number of

35, 36 Times node attempted to send a message.

37, 38 Messages that were successfully transmitted and ACKed.

39, 40 ACKs that were received.

41 ACKs successfully passed from the receiver's separator to the

transmitter.

42 NAKs received.

43 NAKs passed from the separator to the transmitter.

44 Timeouts waiting for a response.

45 ENQs sent.

46 Messages that could not be successfully sent.

47 Reply messages that could not be forwarded and were destroyed.

48, 49 Messages received.

50, 51 ACKs sent.

52 NAKs sent.

53 ENQs received.

54 Retransmissions received and ACKed.

A retransmission is a message that has a transaction (TNS) word,

command (CMD), and source (SRC) that match the previous

message.

55 STX (fullduplex mode) or SOH (halfduplex mode) received.

This is a count of the number of messages that were started.

56 Messages, characters, or message fragments that were ignored.

57 Messages that were aborted by receipt of a DLE ENQ.

58 Messages that were aborted by the receipt of an unexpected control

code other than DLE ENQ.

59 DLE ACK response was sent but there was no buffer space for the

next message.

60 DLE NAK was sent because there was no buffer.

61 Broadcast messages received

62 Broadcast messages that were successfully received.

63 Messages seen that were not for this node.

64 DLE EOTs sent.

65 Calls received.

66 Times the phone was hung up by the module.

67 Times DCD was lost.

68 Times the phone was hung up because of a DCD timeout.

1 2 ... 145 146 147 148 149 150 151 152 153 154 155 ... 250 251

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Rockwell-automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command Manual de usuario Pagina 150