Coding of PNIO status

The PNIO status is a 32 bit unsigned value. It is composed of 4 byte values, which define the meaning of the status. For positive responses PNIO status has a value of zero.

Bit Meaning
24-31 ErrorCode
16-23 ErrorDecode
8-15 ErrorCode1
0-7 ErrorCode2

Table 7-19: Coding of PNIO status for negative responses

ErrorCode Meaning
DB Error in connect response
DC Error in release response
DD Error in control response
DF Error in write response

Table 7-20: Meaning of ErrorCode for negative responses

ErrorDecode Meaning
80 Read/Write service
81 Connect, Control, Release service

Table 7-21: Meaning of ErrorDecode for negative responses

ErrorCode1 Meaning
A1 write error
A2 module failure
A3-A6 reserved
A7 busy
A8 version conflict
A9 feature not supported
AA-AF device specific
B0 invalid index
B1 write length error
B2 invalid slot/subslot
B3 type conflict
B4 invalid area/API
B5 state conflict
B6 access denied
B7 invalid range
B8 invalid parameter
B9 invalid type
BA backup
BB-BF device specific
C0 read constrain conflict
C1 write constrain conflict
C2 resource busy
C3 resource unavailable
C4-C7 reserved
C8-CF device specific

Table 7-22: Meaning of ErrorCode1 for ErrorDecode = 80

ErrorCode1 Meaning
01 Connect Parameter Error, Faulty ARBlockReq
02 Connect Parameter Error, Faulty IOCRBlockReq
03 Connect Parameter Error, Faulty ExpectedSubmoduleBlockReq
04 Connect Parameter Error, Faulty AlarmCRBlockReq
05 Connect Parameter Error, Faulty PrmServerBlockReq
06 Connect Parameter Error, Faulty MCRBlockReq
07 Connect Parameter Error, Faulty ARRPCBlockReq
08 Read Write Record Parameter, Error Faulty Record
14 IODControl Parameter Error, Faulty ControlBlockConnect
15 IODControl Parameter Error, Faulty ControlBlockPlug
16 IOXControl Parameter Error , Faulty ControlBlock after a connection establishment
17 IOXControl Parameter Error, Faulty ControlBlock after a plug alarm
28 Release Parameter Error, Faulty ReleaseBlock
40 RMPM (Device state machines, device resources)

Table 7-23: Meaning of ErrorCode1 for ErrorDecode = 81

ErrorCode1 Meaning
00 ArgsLength invalid
01 Unknown Blocks
02 IOCR Missing
03 Wrong AlarmCRBlock count
04 Out of AR Resources
05 AR UUID unknown
06 State conflict
07 Out of Provider, Consumer, or Alarm Resources
08 Out of Memory
09-FF Reserved

Table 7-24: Meaning of ErrorCode2 for ErrorCode1 = 40

For ErrorCode1 <> 40 ErrorCode2 refers to a field in the block specified by ErrorCode1.

ErrorCode2 Meaning
00 Block type
01 Block length
02 Block version (high byte)
03 Block version (low byte)

Table 7-25: Meaning of ErrorCode2 for ErrorCode1 <> 40

ErrorCode2 Meaning
04 AR Type
05 AR UUID
06 Session key
07 Initiator MAC addressClosedA Media Access Control address (MAC address) is a quasi-unique identifier assigned to most network adapters or network interface cards (NICs) by the manufacturer for identification. If assigned by the manufacturer, a MAC address usually encodes the manufacturer's registered identification number
08 Initiator Object UUID
09 AR Properties
0A Activity timeout factor
0B UDP RT port
0C Station name length
0D Station name

Table 7-26: Meaning of ErrorCode2 for ErrorCode1 = 01 (AR block request)

ErrorCode2 Meaning
04 IOCR Type
05 Reference
06 LT
07 IOCR properties
08 IO data length
09 FrameClosedIn networking dialect, a message is called a frame ID
0A Send clock factor
0B Reduction ratio
0C Phase
0D Sequence
0E Frame send offset
0F Watchdog factor
10 Data hold factor
11 Tag header
12 IOCR multicast MAC address
13 Number of APIs
14 API
15 Number of IO data objects
16 Slot
17 Subslot
18 IO data object offset
19 Number of IOCS
20 Slot
21 Subslot
22 IOCS offset

Table 7-27: Meaning of ErrorCode2 for ErrorCode1 = 02 (IOCR block request)

ErrorCode2 Meaning
04 Number of APIs
05 API
06 Slot
07 Module ident number
08 Module properties
09 Number of submodules
0A Subslot
0B Submodule ident number
0C Submodule properties
0D Data description
0E Data length
0F IOPS length
10 IOCS length

Table 7-28: Meaning of ErrorCode2 for ErrorCode1 = 03 (Expected submodule block request)

ErrorCode2 Meaning
04 Type
05 LT
06 AlarmCR Properties
07 RTA timeout factor
08 RTA retries
09 Local alarm reference
0A Maximum alarm data length
0B Alarm CRT Tag high
0C Alarm CRT Tag low

Table 7-29: Meaning of ErrorCode2 for ErrorCode1 = 04 (AlarmCR block request)

ErrorCode2 Meaning
04 Sequence number
05 AR UUID
06 API
07 Slot number
08 Subslot number
09 Padding
0A Index
0B Data length
0C Target AR UUID

Table 7-30: Meaning of ErrorCode2 for ErrorCode1 = 8 (Read/write record block request)

ErrorCode2 Meaning
05 Padding
06 Session key
07 Padding
08 Control block command
09 Control block properties

Table 7-31: Meaning of ErrorCode2 for ErrorCode1 = 16 (IOXControl block request)