TECHNICAL INFORMATION MANUAL Revision 17 - 07 July 2014 CAEN UHF RFID READERS COMMUNICATION PROTOCOL
Scope of Manual The goal of this manual is to provide the basic information to work with the CAEN UHF RFID READERS Communication Protocol. Change Document Record Date 18 Apr 2011 Revision 14 05 Oct 2012 15 15 Oct 2013 07 Jul 2014 16 17 Changes Added AVP_PC parameter in the Tab. 2.1: Attribute types Modified Tab. 2.3: Commands with Optional Parameters Table Added Tab. 2.
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Index … Scope of Manual ...........................................................................................................................................................................2 Change Document Record ............................................................................................................................................................2 Reference Document ...................................................................................................................
1 INTRODUCTION General Information This document describes the message format of the communication protocol used by the host and the reader in order to issuing commands and reply with responses. The protocol is based on the Attribute Value Pair (AVP) schema and foresees a message header in order to identify the message scope. The command set and the firmware architecture draw inspiration from the Reader Protocol 1.
2 PROTOCOL SPECIFICATION Introduction CAEN UHF RFID Reader protocol uses two logical communication channels: one for synchronous commands and one for asynchronous notifications. Command channel is mandatory and, at now, it is implemented on top of a TCP/IP socket (port 1000) and on RS232 while notification channels are implemented only with sockets. All the messages (commands, responses and notifications) are composed by a header and a body.
Attribute types Code 0x01 0x02 0x0E 0x0F 0x10 0x11 0x12 0x1E 0x1F 0x20 0x21 0x22 0x4D 0x4E 0x4F 0x50 2 Description CommandName: the command to be executed. All the commands are specified in the relevant table. Attribute value is 2 bytes long. ResultCode: a code representing an indication on the result of the command. All the commands are specified in the relevant table. Attribute value is 2 bytes long.
Code 0x51 0x52 0x53 0x54 0x56 0x57 0x58 0x59 0x5A 0x5B 0x5C 0x5D 0x5E 3 4 5 6 Description BitRate: a value representing the RF BitRate.
Code 0x5F 0x60 0x61 0x62 0x63 0x64 0x65 0x66 0x67 0x68 0x69 0x6A 0x6B 0x6C 0x6D 0x6E 0x6F Description RFOnOff: used to start the generation of a continuous wave for test purposes. Attribute value is 2 bytes long and can assume the following vaules: 0x00 = Stop the wave generation. Not 0x00 = Start the wave generation. BaudRate: a value representing the baudrate setting of serial port. Attribute value is 4 bytes long. DataBits: a value representing the databits setting of serial port.
Code 0x70 0x71 0x72 0x73 0x74 0x75 0x76 0x77 0x78 0x7A 0x7B 0x7C 0x7D 0x96 0xFB Description UpgradeArgument: a value representing the argument for the requested upgrade. Attribute value has a maximum length of 255 bytes. 7 For TFTP upgrade (code 0x01) the string has the form: ‘ : ’. MemoryBank: a value representing the memory bank of a EPC Class 1 Generation 2 tag.
Command codes Note: Some commands have been renamed to align the nomenclature in this manual and in the CAEN RFID API Reference Manual. See § Tab. 2.4: Renamed Commands Table pag. 21 to know the equivalence between old and new name of the renamed commands. Note: Some commands have optional parameters. See § Tab. 2.3: Commands with Optional Parameters Table pag. 20 to know the CAEN RFID readers that support them.
Code 0x13 Description InventoryTag: permits to get all the tag’s Ids that are under the RF field of the selected source. Parameters: SourceNameIn: [in] the name of the source to use (optional) Bank: [in] the number of the bank to use (optional). Length: [in] Filter Mask Length (optional). TagID: [in] the Filter Mask Value (optional). TagAddress: [in] Filter Mask Start Address (optional) Bitmask: [in] Inventory Flags. When set to 1 for each tag detected the RSSI value is returned. Default value 0.
Code 0x42 0x49 0x4A 0x53 0x54 0x5D 0x5E 0x5F 0x60 Description RemoveNotifyTrigger: obsolete (please refer to the previous revisions of the manual that can be downloaded in the Manuals and Documents area of the CAEN RFID web site) AllocateTrigger: obsolete (please refer to the previous revisions of the manual that can be downloaded in the Manuals and Documents area of the CAEN RFID web site) DeallocateTrigger: obsolete (please refer to the previous revisions of the manual that can be downloaded in the Ma
Code Description SetProtocol: permits to set the protocol to use. Parameters: Protocol: [in] the protocol to use. ResultCode: [out] the result code. 0x74 0x75 0x76 0x77 0x78 RESERVED CheckReadPointStatus: permits to check the quality of the antenna connection. Parameters: ReadPointName: [in] the name of the readpoint. ReadPointStatus: [out] the quality of the connection. ResultCode: [out] the result code.
Code 0x7D 0x7E 0x7F 0x80 Description GetDESB: obsolete (please refer to the previous revisions of the manual that can be downloaded in the Manuals and Documents area of the CAEN RFID web site) ProgramID: obsolete (please refer to the previous revisions of the manual that can be downloaded in the Manuals and Documents area of the CAEN RFID web site) KillTag: obsolete (please refer to the previous revisions of the manual that can be downloaded in the Manuals and Documents area of the CAEN RFID web site) RFO
Code 0x88 Description SetIODirection: permits to define the direction of the I/O lines. (0 = input; 1 = output) Parameters: IORegister: [in] the direction to set to the I/O lines. ResultCode: [out] the result code. GetIODirection: permits to read the current status of the I/O lines. (0 = input; 1 = output) 0x89 Parameters: IORegister: [out] the direction of the I/O lines. ResultCode: [out] the result code. SetSourceConfig: permits to set a configure parameter for a logical source.
Code 0x95 Description ProgramID_EPC_C1G2: permits to write the EPC in a Class 1 Gen 2 tag. Parameters: SourceName: [in] the name of the source to use. TagIDLen: [in] the ID length of the tag (must be an even number). TagID: [in] the EPC to write into the tag memory. G2NSI: [in] the EPC numbering system. G2Password: [in] the EPC Access password (optional). ResultCode: [out] the result code. Comp. A941M R1230CB R1170I R1270 (See § Tab. 2.3: Commands with Optional Parameters Table pag.
Code 0x99 0x9A 0x9B 0x9C 0x9D 0x9E 10 Description KillTag_EPC_C1G2: permits to execute the tag kill command defined by the EPC Class 1 Gen 2 protocol. Parameters: SourceName: [in, optional] the name of the source to use. BankMask: [in] filter mask for the bank (optional). PositionMask: [in] filter mask start address (optional). TagIDLen: [in] the ID length of the tag. TagID: [in] the ID of the tag or the filter mask to use (optional). G2Password: [in] the kill password.
Code 0x9F Description SetLBTMode: permits to enable or disable the Listen Before Talk capability on ETSI EN 302 208 compatible readers. Parameters: Boolean: [in] 0 to disable LBT and ≠0 to enable LBT. ResultCode: [out] the result code. GetLBTMode: permits to read the current setting for the Listen Before Talk capability on ETSI EN 302 208 compatible readers. 0xA0 Parameters: Boolean: [out] 0 if LBT is disabled, ≠0 if LBT is enabled. ResultCode: [out] the result code.
Commands with Optional Parameters The following table shows a list of EPC C1G2 commands with optional parameters and the CAEN RFID readers that support them (for information about the obsolete readers, please refer to the previous revisions of the manual that can be downloaded in the Manuals and Documents area of the CAEN RFID web site).
Renamed Commands Table Some commands have been renamed to align the nomenclature in this manual and in the CAEN RFID API Reference manual (you can download this manual from the CAEN RFID Web Site). The following table shows the equivalence between old and new name of the renamed commands.
3 ASYNCHRONOUS NOTIFICATION The notification channels are implemented only with sockets. All the messages notifications are composed by a header and a body. In all cases the body of the message is a list of attribute-value pairs. The first AVP of the body is fixed and called NotifyMessage. All the packets for notification channel share the same header format of other packet as described at § 3.
4 EXAMPLES Set Protocol Command Action: Set Reader Protocol to EPC C1G2 Result: Reader selects EPC C1G2 protocol.
InventoryTag Command Action: Execute an inventory cycle on the logical source Source0 Result: Two EPCC1G2 tags are returned as being inventory by the reader on Ant0.
0x536F757263655F3000 (AVP Value) 0x0000 0x000B 0x0022 0x416E743000 (Reserved) (AVP Length) (AVP Type = ReadPointName) (AVP Value = “Ant0”) 0x0000 0x000E 0x0010 0x00000578 0x00000000 (Reserved) (AVP Length) (AVP Type = TimeStamp) (AVP Value = Thu Jan 1 01:23:20 1970) (AVP Value) 0x0000 0x0008 0x0012 0x0003 (Reserved) (AVP Length) (AVP Type = TagType) (AVP Value = EPCC1G2) 0x0000 0x0008 0x000F 0x000C (Reserved) (AVP Length) (AVP Type = TagIDLen) (AVP Value = 96 bit) 0x0000 (Reserved) 0x0012 (AVP Len
WriteTagData_EPC_C1G2 Command Command sent: 0x8001 0x001A 0x00005358 0x005d (Fixed) (Message ID) (Vendor ID = CAEN SpA) (Message Length) 0x0000 0x0008 0x0001 0x0097 (Reserved) (AVP Length) (AVP Type = CommandName) (AVP Value = WriteTagData_EPC_C1G2) 0x0000 0x000F 0x00FB 0x536F757263655F3000 (Reserved) (AVP Length) (AVP Type = SourceName) (AVP Value) 0x0000 0x0008 0x000F 0x000C (Reserved) (AVP Length) (AVP Type = TagIDLen) (AVP Value = 96 bit) 0x0000 (Reserved) 0x0012 (AVP Length) 0x0011 (AVP Type =
ReadTagData_EPC_C1G2 Command Command sent: 0x8001 0x000E 0x00005358 0x0053 (Fixed) (Message ID) (Vendor ID = CAEN SpA) (Message Length) 0x0000 0x0008 0x0001 0x0096 (Reserved) (AVP Length) (AVP Type = CommandName) (AVP Value = ReadTagData_EPC_C1G2) 0x0000 0x000F 0x00FB 0x536F757263655F3000 (Reserved) (AVP Length) (AVP Type = SourceName) (AVP Value) 0x0000 0x0008 0x000F 0x000C (Reserved) (AVP Length) (AVP Type = TagIDLen) (AVP Value = 96 bit) 0x0000 (Reserved) 0x0012 (AVP Length) 0x0011 (AVP Type = Ta
Set Power Command Command sent: 0x8001 0x0000 0x00005358 0x001C (Fixed) (Message ID) (Vendor ID = CAEN SpA) (Message Length) 0x0000 0x0008 0x0001 0x0064 (Reserved) (AVP Length) (AVP Type = CommandName) (AVP Value = Set Power) 0x0000 0x000A 0x0096 0x000003E8 (Reserved) (AVP Length) (AVP Type = Power Set) (AVP Value = 1000 mW) Response received: 0x0001 0x0000 0x00005358 0x001A (Fixed) (Message ID) (Vendor ID = CAEN SpA) (Overall Message Length) 0x0000 0x0008 0x0001 0x0064 (Reserved) (AVP Length) (AVP
LockTag Command Command sent: 0x8001 0x0009 0x00005358 0x004F (Fixed) (Message ID) (Vendor ID = CAEN SpA) (Message Length) 0x0000 0x0008 0x0001 0x0098 (Reserved) (AVP Length) (AVP Type = CommandName) (AVP Value = LockTag_EPC_C1G2) 0x0000 0x000F 0x00FB 0x536F757263655F3000 (Reserved) (AVP Length) (AVP Type = SourceName) (AVP Value) 0x0000 0x0008 0x000F 0x000C (Reserved) (AVP Length) (AVP Type = TagIDLen) (AVP Value = 96 bit) 0x0000 (Reserved) 0x0012 (AVP Length) 0x0011 (AVP Type = TagID) 0x300833B2DD
Continuous Inventory Command Command sent (set read cycle to 0): 0x8001 0x0003 0x00005358 0x0035 (Fixed) (Message ID) (Vendor ID = CAEN SpA) (Message Length) 0x0000 0x0008 0x0001 0x008A (Reserved) (AVP Length) (AVP Type = CommandName) (AVP Value = Set Source Config) 0x0000 0x000F 0x00FB 0x536F757263655F3000 (Reserved) (AVP Length) (AVP Type = SourceName) (AVP Value) 0x0000 0x000A 0x006A 0x00000000 (Reserved) (AVP Length) (AVP Type = Config Parameter) (read cycle) 0x0000 0x000A 0x006B 0x00000000 (Re
0x0000 0x0007 0x0011 0x00 (Reserved) (AVP Length) (AVP Type = TagID) 0x0000 0x0008 0x004e 0x0000 (Reserved) (AVP Length) (AVP Type = Tag Address) (AVP Value = Address) 0x0000 0x0008 0x0067 0x0006 (Reserved) (AVP Length) (AVP Type = Bit Mask) (AVP Value = Flags: FRAMED and CONTINUOS) Response received: 0x0001 0x0002 0x00005358 0x0000 (Fixed) (Message ID) (Vendor ID = CAEN SpA) (Overall Message Length not defined) 0x0000 0x0008 0x0001 0x0013 (Reserved) (AVP Length) (AVP Type = CommandName) (AVP Value
