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Siemens SIMATIC TIWAY 1 Operation & User’s Manual

Siemens SIMATIC TIWAY 1 Manual Online:

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Siemens SIMATIC TIWAY 1 User Manual
Siemens SIMATIC TIWAY 1 User Guide
Siemens SIMATIC TIWAY 1 Online Manual

Text of Siemens SIMATIC TIWAY 1 User Guide:

  • CONFIGURING THE HOST COMPUTER PORT UNILINK HOST ADAPTER 3–10 USER MANUAL The BDLC protocol is a byte–oriented subset of the ANSI X3.66 standard protocol, similar to the ISO standard HDLC protocol. The major features of the BDLC protocol are listed below .  It provides a higher level of data integrity and throughput improvements over NITP , but it is also more c

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–6 USER MANUAL 5.2 ERROR RESPONSE An ERROR RESPONSE, rather than the normal command response, will be returned when the host request is invalid. Response: 00 dddd (aa) Parameters: dddd Error codes. All error codes and corrective actions are given in Chapter 6. aa The secondary address associated with the error code. This parameter is only included if applicable.

  • Siemens SIMATIC TIWAY 1, THE TIWAY I NETWORK PORTS UNILINK HOST ADAPTER4–5 USER MANUAL 4.1.2 Modem Inter face A000654 Port 1 Port 2 Port 3 Port 4 AC NEUT AC LINE GND 1 2 3 4 5 I/O Interface Ports Figure 4–4 RS–232–C/RS–423–A Modem Interface Ports The modem interface is a standard “T ype E” DTE configuration as defined in the EIA RS–232–C standard that uses EIA RS–423–A drivers. This interface uses a female 25-pin “D” type connector on both Ports 1 and 2 as shown in Figure 4–4. These two ports support redundant media transmi

  • Siemens SIMATIC TIWAY 1, USING THE NON-INTELLIGENT TERMINAL PROTOCOL UNILINK HOST ADAPTER A-4 USER MANUAL A.1.5 Error -Checking Code Following the message body is an ASCII four-character error-checking code (ECC) in the form of a 16-bit hexadecimal number that is included at the end of the message just before the semicolon terminator. The ECC is a checksum computed by both the sending and receiving stations as follows: 1. Divide the character count and the message body into blocks of four characters, left-justified and zero-filled. The beginning and ending delimiters

  • OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–14 USER MANUAL At any time, your applications software can retrieve the current values for these parameters by issuing the REPORT ADAPTER CONFIGURA TION command, code 21. In addition to those parameter values, this command will also return the values of the dipswitch settings and a flag that indicates whether the CONFIGURE ADAPTER comman

  • Siemens SIMATIC TIWAY 1, OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–6 USER MANUAL 2.3.2 Network Manager Function Acting as the network primary, the Network Manager function is responsible for controlling the message traffic on the TIW A Y I network as shown in Figure 2–5. It receives the requests from HIUs and stores them in a NM buffer , routes them to the designated secondary devices, and returns the secondary response to the HIU that issued the request. There can be only one adapter configured with the Network Manager function in any particular TIW A Y I network. This function will only process Network Manager commands. These commands control the TIW A Y I network operations, return network s

  • CONFIGURATION WORKSHEET UNILINK HOST ADAPTER E–2 USER MANUAL Host Computer Port Parameters Baud Rate 110 150 300 600 1200 2400 4800 9600 19,200 38,400 Synchronous Asynchronous Full Duplex Half Duplex Parity Enabled Disabled Protocol BDLC NITP BDLC Address Network Ports Parameters Baud 110 150 300 600 1200 2400 4800 9600 19,200 38,400 57,600 115,200 Media Typ

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–28 USER MANUAL 02 = Connect Secondary. This macro type performs the CONNECT SECONDARY function for the single secondary device in the background mode. When the connect attempt is complete, the MRSW will be set to 8004 hex and the exception flag will be set. The MRSW can be retrieved with the GATHER MACRO RESPONSE command. This macro type will be automatically enabled when the command is processed and will be disabled when the connect attempt is complete. 03 = Disconnect Secondary. This macro type performs the DISCONNECT SECONDARY function for the single secondary device in the background mode. Thi

  • Siemens SIMATIC TIWAY 1, USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–14 USER MANUAL (1) The host computer issues a SNRM to initialize the adapter and the adapter responds with a UA. (2) The host computer then sends an I-Frame. The sequence counts are both zero since the SNRM was issued previously . The adapter does not have any information to return, so it responds with an RR that acknowledges the I-Frame. (3) The host computer sends another I-Frame with the N(S) count incremented. This time the adapter has information to re

  • Siemens SIMATIC TIWAY 1, USING THE BDLC PROTOCOL UNILINK HOST ADAPTER B–8 USER MANUAL B.4 COMMANDS AND RESPONSES The following subset of the ANSI X3.66 standard is supported by the UNILINK Host Adapter:  SNRM — The Set Normal Response Mode command is issued by the host computer to logically activate the adapter ’ s host interface and/or to reset the send and receive sequence counts. A SNRM must be sent to the adapter before any other command when the adapter is in the “Disconnected Mode”.  DISC — The Disconnect command is issued by the host computer to logically deactivate the adapter ’ s host interface and forces the adapter to p

  • ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER6–9 USER MANUAL 6.4 DIAGNOSTIC TESTS The UNILINK Host Adapter provides both selectable and continuous diagnostic tests to insure proper operation. The pattern shown on the six LEDs, shown in Figure 6–1, will indicate whether the adapter is operating normally or if an error has occurred. LEDsResetNumber 2 Number 1 Figur

  • OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–26 USER MANUAL 2.9.2 Sending Data To And Fr om Secondary Devices After the secondary device is connected, your applications software can send TIWAY I Primitives to the secondary with the SEND NETWORK DATA command or the BROADCAST NETWORK DATA TRANSFER command. The TIWAY I Primitives provide control functions s

  • Siemens SIMATIC TIWAY 1, OPERATION AND APPLICATION UNILINK HOST ADAPTER2–17 USER MANUAL 2.6 SPECIAL NETWORK MANAGER FEATURES The adapter provides two special features in the MHIU and NM operating modes. First is the redundant media channels with selectable automatic media channel switching. Second is the background monitor that will bring devices online dynamically . 2.6.1 Redundant Media Channels The adapter provides for two network media channels, Ports 1 and 2, described in more detail in Chapter 4 . Y ou may select to use only one channel or both by specifying the

  • HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER5–7 USER MANUAL 5.3 BASE HIU COMMANDS The Base HIU commands are backward compatible with the original commands for the TIW A Y I Host Adapter . These commands cause a direct network request to be issued to connect and disconnect secondaries, send data to and from secondaries, and read secondary statistics. Your applications software must wait

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER5–63 USER MANUAL 5.6.7 Report Network Bandwidth Allocation — 36 The REPORT NETWORK BANDWIDTH ALLOCA TION command returns the relative amount of network bandwidth being used by a specific HIU. The counters stop incrementing when they reach their maximum value and must be explicitly reset. The first set of counters corresponds to the counts for all HIUs and the second set for the specified HIU. The ratio of the HIUs counts to the counts for all HIUs gives a rel

  • Siemens SIMATIC TIWAY 1, ERROR CODES AND DIAGNOSTICS UNILINK HOST ADAPTER 6–10 USER MANUAL 6.4.1 The LEDs Only the Adapter Good LED is visible through the door during normal operation. The Adapter Good LED will remain lit when the adapter is operating properly. The remaining LEDs assume the meanings shown in Figure 6–2 during normal operation. At any given time, the Online, Receive, and T ransmit LEDs may be on, off, or flashing during normal operation. Adapter Good Online Receive Transmit Figure 6–2 LEDs During Normal Operation 6.4.2 Performing Diagnostic T ests The diagnostic tests are initiated either by pressing the RESET switch located to th

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER5–25 USER MANUAL 5.4.4 Allocate Macr o Storage Buf fers — 13 The ALLOCATE MACRO STORAGE BUFFERS command allocates buffers for macro storage. This command can be repeatedly issued, and the HIU will continue to add buffers until the HIU memory is either used or a total of 254 macro buffers have been allocated. Figure 5–6 shows the relationship between Source Id numbers and macro buffers. These buffers remain allocated to the Source Id number

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER5–3 USER MANUAL 5.1.2 Usage Description A usage description is included with each command reference to give an indication of when the command should be used. The meaning of the usage descriptors are CONFIGURATION This command is used to configure the adapter for operation. This command can only be issued once to each adapter after they have been reset or powered up. INITIATION This command is used to initialize the network devices. OPERATION This command is used for ongoing communications between the host computer and the network devices. PERFORMANCE This command is used to gather statistical performance

  • Siemens SIMATIC TIWAY 1, UNILINK HOST ADAPTER1–1 USER MANUAL CHAPTER 1 THE UNILINK HOST ADAPTER 1.1 INTRODUCTION The UNILINK Host Adapter , Figure 1–1 is a second generation host computer interface product that allows a host computer to operate and control secondary devices on a TIW A Y I network. The UNILINK Host Adapter , also referred to as the “adapter” in this manual, is a hardware and software extension of the original TIW A Y I Host Adapter . Figure 1–1 UNILINK Host Adapter

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER 5–14 USER MANUAL 5.3.6 Read Secondary Log — 06 The READ SECONDARY LOG command returns the list of secondaries that are logically connected to the HIU. Command: 06 Response: 06 [aa] Usage: OPERATION Modes: MHIU/EHA, HIU/EHA, MHIU, HIU Parameters: aa The secondary addresses currently connected to the HIU. If no secondaries are connected, the value returned will be 00.

  • Siemens SIMATIC TIWAY 1, OPERATION AND APPLICATION UNILINK HOST ADAPTER2–27 USER MANUAL The BROADCAST NETWORK DATA TRANSFER command will send the Primitive to all logically connected secondary devices on the network and is provided for backward compatibility with the original TIWAY I Host Adapter. The Broadcast/Poll sequence is more efficiently handled with macros discussed in Paragraph 2.10. Unlike the SEND NETWORK DATA command, the responses from the secondaries do not automatically return. If the command is accepted, the command code will be returned, then your applications software MUST issue a POLL command to

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER5–29 USER MANUAL oo The macro options byte, which is bit mapped as follows: 0 1 = Automatically Enable For Execution 1 = Repetitive Macro 1 1 = Freeze Macro and Response On Exception 2 0 = Set Exception Flag On First Response 3 Bits 4–7 Are Unused 4 567 MSB LSB 0 = Leave Macro Disabled 0 = Non–repetitive Macro 0 = Do Not Freeze Macro and Response On 1 = Do Not Set Exception Flag On First Response Exception Figure 5–7 Macro Options Byte Bit 0 when set to a one will automatically enable

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER5–43 USER MANUAL will be set, disabling the trigger macro. Once the action macro has successfully completed, the trigger macro behaves as any non-linked macro. If the trigger macro is repetitive or the freeze option detected no change, it will be enabled. The trigger macro’ s exception flag will be set if a change occurred, but not until the action macro completes processing. If the action macro cannot be executed for any reason, such as the secondary has gone offline, the macro link

  • Siemens SIMATIC TIWAY 1, OPERATION AND APPLICATION UNILINK HOST ADAPTER 2–2 USER MANUAL Performance and Applications Flexibility Basic HIU Commands Mode Independent Commands Configure Adapter Commands Extended HIU Commands Network Manager Commands     NUMBER OF COMMANDS Figure 2–2 Performance vs Commands Communications between the host computer and the UNILINK Host Adapter are a series of commands and responses as illustrated in Figure 2–3. For every command sent, there will be a response. The response will be one of the following.  An acknowledgment that the command was received  A command response  The ERROR RESPONSE

  • Siemens SIMATIC TIWAY 1, OPERATION AND APPLICATION UNILINK HOST ADAPTER2–13 USER MANUAL operating mode to the value specified. The only operating mode that can not be set with this command is the Standalone Network Manager (SANM), since it can not accept any host computer commands. Instead, the SANM mode is selected by dipswitch settings described in Chapter 3 and Chapter 4. Each host computer must send this command to its attached UNILINK Host Adapter(s). The mode remains in effect and can not be changed until the adapter is reset. The parameters for this command specify the HIU address, the maximum secondar

  • Siemens SIMATIC TIWAY 1, HOST COMMAND SET REFERENCE UNILINK HOST ADAPTER5–33 USER MANUAL 5.4.7 Enable/Disable Macr o Execution — 16 The ENABLE/DISABLE MACRO EXECUTION command processes a list of macro buffer numbers to either enable or disable the specific macros for execution. The exception flag is cleared for each valid macro buffer number regardless of whether the macro is being enabled or disabled. If the macro is successfully enabled, the MRSW is reset or if the macro is successfully disabled, the MRSW is set to the disabled T ermination Code. NOT

  • Siemens SIMATIC TIWAY 1, OPERATION AND APPLICATION UNILINK HOST ADAPTER2–45 USER MANUAL Once the action macro has successfully completed, the trigger macro behaves as though the link never existed. If it is a repetitive macro, it will be enabled. The trigger macro’ s exception flag is also set as though the link never existed except that it will not be set until the action macro has completed execution. The exception flag of the action macro is only set when an error occurs for its secondary device. If the action macro can not be executed for any reason, such as the secondary is offline, t

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