Appendix: IdentResponse Frame
80
NMT Service Slot data fields of IdentResponse
74…77
DefaultGateway
78…109
HostName
110…157
VendorSpecificExtension2
Field
Abbr
Description
Priority
PR
Flags: Indicates the priority of the requested
asynchronous frame (see 4.2.4.1.2.3)
RequestToSend
RS
Flags: Indicates the number of pending requests to send
at the CN. The value C_DLL_MAX_RS indicates
C_DLL_MAX_RS or more requests, 0 indicates no
pending requests.
Values: 0…C_DLL_MAX_RS
NMTStatus
stat
Reports the current status of the CN’s NMT state
machine.
EPLVersion
eplv
Indicates the POWERLINK version to which the CN
conforms.
FeatureFlags
feat
Reports the feature flags of the device.
(NMT_FeatureFlags_U32)
MTU
mtu
Reports the size of the largest IP frame that can be
transmitted over the network, including the size of the
transport header.
Values: C_DLL_MIN_ASYNC_MTU
…
C_DLL_MAX_ASYNC_MTU
PollInSize
pis
Reports the actual CN setting for PReq datablock size
(NMT_CycleTiming_REC.PReqActPayloadLimit_U16).
PollOutSize
pos
Reports the actual CN setting for PReq datablock size
(NMT_CycleTiming_REC.PReqActPayloadLimit_U16).
ResponseTime
rst
Reports the time required by the CN to respond to PReq.
(NMT_CycleTiming_REC.PResMaxLatency_U32)
DeviceType
dt
Reports the CN’s Device Type. (NMT_DeviceType_U32)
VendorID
vid
Reports the CN’s Vendor ID, index.
(NMT_IdentityObject_REC.Vendorid_U32)
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