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 7-5: 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 7-6: Meaning of ErrorCode for negative responses

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

Table 7-7: 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 7-8: 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 7-9: 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 7-10: 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 7-11: Meaning of ErrorCode2 for ErrorCode1 <> 40

ErrorCode2	Meaning
04	AR Type
05	AR UUID
06	Session key
07	Initiator MAC address A 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 7-12: 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	Frame In 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 7-13: 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 7-14: 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 7-15: 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 7-16: 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 7-17: Meaning of ErrorCode2 for ErrorCode1 = 16 (IOXControl block request)