PROFI-8455
Release
1. Add option, “Clear-Type”, to i-87K counter function’s DI module.
2. Redesign configuration code for temperature module and i-87K counter function’s
DI module.
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.................................................................................................. 4
............................................................................................. 4
.......................................................................................... 6
.................................................................................... 7
........................................................ 8
............................................................................................... 9
PROFIBUS Cable and Transmission Distance
............................... 10
..................................................................................... 11
.............................................................................................. 13
......................................................................... 14
....................................................................................... 15
................................................................................. 16
..................................................................................... 17
The flow chart of the DP-slave
........................................................... 17
Power On / Reset – Rotary switch
.............................................. 18
......................................................................... 19
..................................................................................... 19
........................................................................................ 19
................................................................ 19
Module parameters for I-8K module
........................................................ 20
................................................................................ 26
...................................................................................... 26
..................................................................................... 30
.................................................................. 30 i-8K Series
............................................................................................. 30
......................................................................................... 34
3.5.2 Byte Order and Data Address
.......... 43 i-87K Series - Digital Input w/ Counter
............................................. 43
i-8K Series & i-87K Series – General Analog Input ( w/o CJC
Read/Offset ) and Analog Output
......................................................................................... 44
i-8K Series & i-87K Series – Counter/Frequency
........................... 46
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Statistic Table of i-8K & i-87K
............................................................. 49
............................................................... 53
Establish connection with PROFI-8455
............................................ 56
Telegram cycle of data exchange
...................................................... 57
PROFI-8455 Guideline (Based on SyCon)
.................................................... 59
....................................................................................... 59
.................................................................................... 65
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PROFIBUS is an open, digital communication system with a wide range of applications, particularly in the fields of factory automation and process automation. PROFIBUS is suitable for both fast, time-critical applications and complex communication tasks. PROFIBUS-DP is a famous protocol that enables simple, fast, cyclic and deterministic process data exchange between
Master and assigned Slave.
The PROFI-8455 Remote I/O Unit is specially designed for the slave device of PROFIBUS DP protocol. It supports up to 4 I/O slots for ICPDAS i-8k series, i-87k Low Profile series and i-87k High Profiles series I/O modules. In addition, we also provide the hot-swap function for i-87k High Profiles series
I/O modules. To setup PROFIBUS network, users can choose and configure
I/O modules by using the GSD file without any other setting tools.
•
Industrial
•
Factory
•
Process
•
Etc…
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Protocol & Hierarchy
Supports Transmission Rate
(Kbps)
Transmission Rate Setting
Address Setting
Indicators
I/O modules Configuration
Supports I/O modules hot-swap
Network Isolation Protection
DC Isolation Protection
Max. Input/Output Data
Length
Number of Channel of Diag.
Device-Related Diag. Type
Programmable Diag. period
DP-V0 Slave
9.6, 19.2, 45.45, 93.75, 187.5, 500,
1500, 3000, 6000, 12000 detected automatically
0~126 set by Rotary switches
PWR, ERR, and RUN LEDs
Configured by GSD file
I-87K High Profile series
High Speed iCoupler
3000VDC on PROFIBUS side
Up to 128Bytes each
39
Offline Detection
Supported
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Model PROFI-8455
Watch Dog Timer
PROFIBUS Interface
PROFIBUS Controller
PROFIBUS Transceiver
Transmission Rate
I/O Expansion Slot
Power Requirement
Power Supply
Power Consumption
Operating Temp.
Storage Temp.
Humidity
CPU Built-in
9-pin D-Sub(Female)
Siemens SPC3
ADI ADM2486 iCoupler Isolated
Transceiver
Up to 12Mbps
4 Slots
10V ~ 30V
25W
5W
-25
℃
~ +75
℃
-30
℃
~ +85
℃
5% ~ 95%
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Type
DI
DO
DI/O
Module Name i-8040 / i-8051 / i-8052 / i-8053 / i-8058 i-87040 / i-87051 / i-87052 / i-87053 / i-87058 i-87040W / i-87046W / i-87051W / i-87052W / i-87053W / i-87053W-A5 / i-87058W
Type
AI
Module Name i-8017h / i-8017hs i-87013 / i-87017 / i-87018 i-87013W / i-87015 / i-87017W / i-87017W-A5 / i-87017R / i-87017RC / i-87018R / i-87018Z
/ i-87019R i-8037 / i-8041 / i-8056 / i-8057 / i-8060 / i-8064 / i-8065 / i-8066 / i-8068 / i-8069 i-87041 / i-87057 / i-87064 / i-87065 / i-87066 / i-87068 / i-87069 i-87041W / i-87057W / i-87064W / i-87065W / i-87066W / i-87068W / i-87069W i-8042 / i-8050 / i-8054 / i-8055 / i-8063 / i-8077 i-87054 / i-87055 / i-87063 i-87054W / i-87055W / i-87063W
AO i-8024 i-87022 / i-87024 / i-87026 i-87024W
Counter /
Frequency i-8080 i-87082
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In order to minimize the reflection effect of the signal transmission,
PROFIBUS device has to fit with an active terminal resistor at both first node and last node, as shown below
However, the number of station in PROFIBUS network is also restricted.
According to PROFIBUS specification, it is up to 32 stations connected in a
PROFIBUS segment. If more than 32 stations are connected, the PROFIBUS repeater must be used to link the individual bus segments.
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The PROFIBUS cable with following properties has different transmission distance with respect to different transmission rate, shown in the following table
1. Impedance :135~165 Ω
2. Capacity : lower than 30 pF/m
3. Loop resistance : lower than 110 Ω /Km
4. Wire diameter : larger than 0.65mm
5. Core cross-section : larger than 0.34mm
2
Transmission Rate(Kbps) Transmission Distance per Segment (meter)
9.6, 19.2, 45.45, 93.75 1200
187.5 1000
500 400
1500 200
3000, 6000, 12000 100
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PROFI-8455 provide three types of status indicators, they are PWR LED
(yellow), ERR LED (red) and RUN LED (green). When the power is supplied to PROFI-8455, PWR LED will turn on; Before PROFI-8455 gets into the data exchange state, ERR LED will turn on or flash; If CHK_CFG procedure is finished, RUN LED will turn on and ERR LED will turn off. The table below explains the relationship between linking status and recommend solutions.
Meaning Status Indicator
ERR ON &
RUN OFF
ERR Flash
(0.1 Sec)
ERR Flash
(0.5Sec)
PROFI-8455 is offline with no valid baud rate
(offline mode*)
PROFI-8455 detects baud rate, but is still offline.(stop mode*)
PROFI-8455 Prm is
Fault.(Note 1)
Recommend solution
Check the address setting of
PROFI-8455 and DP-master.
Check the DP-Master is ready to communicate with
PROFI-8455.
Check the setting of
PROFI-8455 in the master interface and make sure of the consistency.
Same as above ERR Flash
(1 Sec)
ERR ON & RUN
ON
ERR OFF & RUN
ON
PROFI-8455’s Cfg is fault(Note 2)
PROFI-8455 is in clear mode*.
PROFI-8455 is in operation mode*.
Sets the DP-Master from clear mode to operation mode
PWR Flash
(1 Sec)
PROFI-8455 detect module(s) offline
Find the reason of the fault of corresponding module.
Note 1: “Prm Fault” is the abbreviation of “Parameter Fault”; It means that the number of parameter data which receive from DP-Master is not consistency
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with DP-Slave (PROFI-8455), and it could due to the difference between module installation and master setting.
Note 2:“Cfg Fault” is the abbreviation of “Configuration Fault”, it means that the number of configuration data which receive from DP-Master is not consistency with DP-Slave (PROFI-8455), and it could due to the wrong order of installation.
Note *: there are four kinds of state in PROFIBUS DP Master.
1. Offline mode: Master not active on the bus.
2. Stop mode: Master only transmit token on the bus, and PROFIBUS
DP is not active.
3. Clear mode: DP Master active, but all output are zero or set to fail-safe state.
4. Operate mode: DP Master full active.
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The connector of PROFI-8455 is shown below
Pin No. Signal
3
4
B-Line
Meaning
Receive/Transmit data - plus
CNTR-P Repeater control signal, RTS signal
5
6
GND
VP
Power ground of active terminator
Power 5 volt of active terminator
8 A-Line Receive/Transmit data - minus
Note: The connector of PROFI-8455 has no terminators; users must use the connector with the terminator inside. The power of the terminator will provide by PROFI-8455 and Master.
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There is a built-in watchdog timer to monitor the linking status between
PROFI-8455 and Master. In order to ensure an error-free connection, watchdog mechanism divides into three stages.
In the first stage, watchdog detects the start delimiter whether valid or not after the status of power supplied or system reset. If no SD1 telegram, SD2 telegram, or SD3 telegram are received completely, PROFI-8455 will changes the baud rate and continues detecting the correct baud rate. This stage is called “Baud Search”.
If the watchdog has detected a valid SD telegram, it goes into the second stage. In this stage, the watchdog monitors the integrity of the telegram. When watchdog timer is expired and PROFI-8455 doesn’t receive the complete telegram, PROFI-8455 will go to “Baud Search” state. This stage is called
“Baud Control”.
After PROFI-8455 finishes initializing, PROFI-8455 waits for receiving the
Set_Prm telegram. If PROFI-8455 receives the Set_Prm telegram with
“WD_On=1”, then watchdog goes into DP_Control and monitors the telegram in Twd time. Otherwise, watchdog remains in the “Baud Control” state. This stage is called “DP_Control”.
Beside the watchdog mechanism mentioned above, i-87K modules with analog output or digital output have their own host watchdog to monitor the status of PROFI-8455. If PROFI-8455 lost the control of DP-Master (due to any unpredictable fault), it can’t send a specific watchdog clear command to flush the watchdog timer of i-87K modules. Then the module will go to safe mode. There are three kinds of safe-value in safe-mode, they are “retain last valid value”, “clear(zero)”, and “switch to substitute value”.
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The figure shown above is the hexadecimal rotary switch. It dominates the node (station) address of PROFI-8455. The switch which labeled MSB is high nibble of address and the other one is low nibble of address.
According to PROFIBUS specification, the station address which from 0 to
126 is valid, and the address 126 is a special address that supports the remote setting SSA telegram from Class 2 DP-Master. PROFI-8455 uses the value of rotary switch as its address if the address is valid. While the address is invalid, PROFI-8455 will load the pre-saved value in EEPROM. Moreover, if the address is invalid (126) again, PROFI-8455 awaits the SSA telegram and applies it. (Note: If you want to clear the setting stored in EEPROM, you should adjust rotary switch to FF before the power is supplied).
SSA Telegram Rotary
Switch(dec)
0~125
126~254
Pre-saved address
(EEPROM)
Don’t care No Accept
PROFI-8455
Station Address
Rotary Switch
(EEPROM)
126
(default)
Accept with address
0~125
SSA Telegram and save address to
EEPROM
127~254 impossible N/A
255 Clear to 126 Accept with address
SSA Telegram and save address to
0~125 EEPROM
Note 1: Only one DP-Slave station with address 126 is permit in the bus.
Note 2: if you want to change the station address after data exchange had in proceed, you must be let the PROFI-8455’s Watchdog timeout and wait for 1 sec to release old address.
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PROFI-8455 supports the entire baud rates of PROFIBUS. They are
9.6Kbps, 19.2Kbps, 45.45Kbps, 187.5Kbps, 500Kbps, 1.5Mbps, 3Mbps,
6Mbps, and 12Mbps. Because PROFI-8455 has a functionality of auto- detection for baud rates, users don’t need to set the baud rate of PROFI-8455.
Note: Many baud rates only are supported by the particular cable or speed.
For the detail, please refer to the above section “
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Before DP-Slave changes to data exchange state, it employs some telegrams to initialize and establish the connection with DP-Master. These telegrams include Slave Diagnosis (Slave_Diag), Set Parameter (Set_Prm),
Check Configuration (Chk_Cfg), Slave Diagnosis, Data Exchange (Data_Exch) and optional global control (GC). The explanation is as follows:
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While the power of PROFI-8455 has be supplied, PROFI-8455 loads the value of rotary switch first and decides to apply it or not by according to mechanism as follows. If the address of rotary switch is smaller than 126,
PROFI-8455 applies the value directly. PROFI-8455 will load the pre-saved address stored in EEPROM, if the address of rotary switch is larger than 126 and smaller than 255. If the address stored in EEPROM is equal to 126 again,
PROFI-8455 will wait for the Set_Slave_Add(SSA) telegram. A special address 255 is used for recovering address 126 to EEPROM in case of error
SSA_telegram setting or other cases. Please refer to the more detail in the next chapter. The following figure shows the state flow of Wait SSA.
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In order to establish the connection completely, the DP-Slave should obtain enough information from the DP-Master. The DP-Slave uses the parameterization data to initialize the I/O module of DP-Slave. Parameters provided by DP-master divided into two parts in general: one is master-related parameter, and the other is module-related parameter. Master-related parameters provide the common setting between DP-Master and DP-Slave
(e.g. Byte-Order, Diagnostic Period, etc). Module-related parameters provide the fundamental setting of the I/O modules in DP-Slave. If the parameters have been set in the DP-Slave successfully, DP-state will proceed to wait configuration, otherwise it will return to wait parameter.
PROFI-8455 also has two kinds of parameter data. One kind of parameters is the system data, and the other is I/O module data. In i-8K modules, there is no I/O module parameter except for i-8017H(S), i-8024, i-8050 and i-8080. In i-87K modules, every module has their own parameters to determine the data format and operation mode. We will describe the I/O modules plugged in PROFI-8455 individually in next section.
The memory allocation in PROFI-8455 is according to the slot id.
Therefore, the I/O module in slot 0 will allocate memory first, slot 1 in next and so on. Byte order is an important factor related to the memory allocation. Big-endian byte order (Motorola format) allocates more significant byte in lower memory address. On the other hand, little-endian
Byte order (Intel format) allocates more significant byte in higher memory address.
For example, the integer which value is 0x0400(hex) will allocates
0x40(hex) in the first byte of the memory allocated to the integer and
0x00(hex) in the second byte.
Slave Diagnosis is one of the function of DP-V0. It reports the unusual event (short-circuit, offline, lower than min. value, larger than max. value and etc.) periodically or immediately. PROFI-8455 will report and retain the last valid value when the I/O modules occur errors. Diagnostic request have no SAP (Service Access Point). The way is using the data exchange telegram or read_input telegram with a high priority function code. And
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DP-Master can use the slave_diag telegram to fetch diagnostic message before the next data exchange request. Then the data exchange continues.
As mentioned above, the average period of data exchange will increase when DP-slave sends slave_diag request to DP-Master continuously. In other words, the system performance will reduce. In order to solve this problem, PROFI-8455 provides a system parameter
“diagnosis report period” to pick an appropriate period. This period is flexible and its range is from 0ms to 65535ms (0ms represent immediate report).
i-8017 is a standard analog input module; it requires the data of “Data
Format”, “Data Range” and “Diag Enable” to establish the connection completely. In order to reduce the length of parameter data, PROFI-8455 encapsulates this information into one byte for one channel. So there are 8 bytes data for i-8017H and 16 bytes for i-8017HS.
Data range is about the measurement type (voltage, current) and the measurement range (-10v to 10v or 4mA to 20mA). Data format can be selected either engineer unit format or hexadecimal format. Finally, “Diag
Enable” is a flag that determines whether diagnostic message will report or not.
i-8024 is similar to i-8017H(S) , please refer to i-8017 .
i-8050 is a programmable digital input/output module with sixteen programmable I/O. It is different from the other digital modules. Before using i-8050, user must configure it first. PROFI-8455 provides a 2-byte length to configure the i-8050. The first byte controls the direction (Input or
Output) of channel 15 to channel 8, and the second byte correspond to channel 7 to channel 0. As mentioned above, digit ‘1’ represents input and
‘0’ represents output.
i-8080 is a counter/frequency module with 30 bytes length parameter.
PROFI-8455 divides these parameters into 2 parts; First part is only for
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frequency mode, which is updated period of auto mode, low-frequency mode, and high frequency respectively. Another part is for both Frequency and Counter mode, which is XOR-Register, Channel Mode, Frequency
Band, Filter Enabled, and Low Pass Filter Pulse Width respectively. Note that if frequency band is selected inappropriately, it will induce the incorrect measurement. For example, if a input signal is 80Khz and frequency band is set to low frequency band with 1000ms update period, then it will measure 65.536KHz instead of 80KHz. Therefore selecting an appropriate frequency band is necessary. For the detail, please refer to i-8080 user manual. In additional, PROFI-8455 provides another parameter that controls the trigger type of count clear. User can choose one of them if needed.
Note: i-8080 hardware counter is 16 bit and maximum counter value is
65535. PROFI-8455 uses the software method to expand this bound to 2
48
, so user must be careful with some limits.
Before using the i-87K module with PROFI-8455, it must be initialized the configuration. Unlike the i-8K module, i-87K module uses the serial interface to communicate with MCU. In the following section, we will introduce the module parameters of i-87K briefly.
1. Type Code: every operation mode has an unique type code in the i-87K module. Its range is from 0 to 128. This code dominates the module’s behaviors which are voltage input, current input, temperature input, digital I/O and so on. In general, most AI modules support parts of type code. For example, i-87017 supports type code 0x08 to 0x0D for voltage input.
2. Data Format: PROFI-8455 provides four kinds of data format to broaden the applicability. They are engineer unit format,
Hexadecimal format, percentage of full scale and Ohm in engineer unit. Most i-87K modules support the first three formats, and the last format is only supported by i-87013 and i-87015.
Besides the essential parameter mentioned above, a number of modules have some self-related parameter.
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, e.g. i-87013, i-87015, i-87017, i-87017R, i-87017RC, i-87017ML, i-87018, i-87018R, i-87018Z, i-87019R, i-87022, i-87024 and i-87026, they all have an additional parameter
“Diag Enable” to determine whether diagnosis report or not.
Among the analog input modules, most of them share a common type code. It means that every channel operates at the same mode, and this manner will narrow its applicability. ICP DAS provides a number of modules supporting individual channel configuration to solve this problem; They are i-87015 and i-87019R. In contrast to analog input module, analog output modules i-87022 and i-87026 also support individual channel configuration.
In
i-87082, type-code is fixed to 0x80, and its parameters are divided into several parts, as shown below:
1. Frequency Gate Time: Frequency gate time is also called
“sampling period”. It controls the signal-passing time. The counter takes effect during this period only, when AC-signal is supplied. After this period has elapsed, PROFI-8455 transforms this count into appropriate count value or frequency value immediately and available in INPUT buffer.
2. High Level Trigger Voltage: It is the threshold of the minimum input voltage of logic “1” at the non-isolated input. The default value is 24(2.4 volt).
3. Gate Mode: Gate mode is like frequency gate time. The difference between them is that gate mode is for counter mode and frequency gate time is for frequency mode. Gate mode with
0 is low active which means the count-signal take into account if
GATE pin is connected a logic “0”. Gate mode with 1 is like
Gate mode with 0, but the mode is high active. Gate mode with
2 disables gate control and GATE pin is regardless.
4. Low Level Trigger Voltage: It is the threshold of the maximum input voltage of logic “0”at the non-isolated input. The default value is 8(0.8 volt).
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5. Input Mode: This parameter is used to define the input as isolated or non-isolated. The Isolated input is used to isolate the electrical interference. The Isolated input uses photo-couple to pass the On/Off signal to i-87082 and the non-isolated input is directly accepted the input signal into the i-87082.
6. Filter Enabled: Digital filter is provided by i-87082, and it can be enabled by setting this parameter to “Enable”.
7. Trigger Type of Channel 1 & 0: Trigger type is a parameter that control the action of “Clear”, ”Start”, “Stop” command. The default setting is Rising Edge Trigger. i-87082 can accept command only when the state of the function selection is changed from 0(Disable) to 1(Start) or 2(Stop) or 3(Clear). On the other hand, i-87082 accepts command only with the value of the function selection larger than 0 when the setting is High
Level Trigger,.
8. High Level Pulse Width: This parameter is an important factor of digital filter. It dominates the minimum pulse width that i-87082 can accept. If pulse width is shorter than that, it will be filtered. Otherwise, it can pass through. For example, if there is a signal 200 KHz with duty cycle 50% and high level pulse width is set to 3us, then this measurement signal is limited in
166 KHz. The Signal has been filtered, because the signal with
200 KHz has the pulse width of 2.5us and it is smaller than 3us.
Note: Formula of Maximum Frequency is equal to the inverse of pulse width divided by duty cycle.
9. Low Level Pulse Width: This parameter is like High Level Pulse width. Please refer to High Level Pulse Width.
10. Preset Count of Counter N: The preset count is a parameter with four bytes length. It will be load when clear command is issued or module reset. The range of this parameter is between
0 and 2
32
. Notice that this setting will not be cleared by clear command. It only can be modified by Set_Prm telegram.
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11. Maximum Count of Counter N: Maximum count is the threshold of the overflow. If the count value reaches this threshold, the channel will overflow and halt for clear. Otherwise, the counter continues counting. There is the difference between i-87082 and Ii-8080. The overflow presentation in i-8080 is an integer with 16 bits length just only one bit in i-87082.
Note: When overflow flag is not cleared by users, it will be held this status until clear command is issued. As soon as the channel overflows, the diagnostic message will be reported.
The output modules consist of Analog Output modules and Digital Output modules. They are different from the Input modules. Output modules have the
Safe Value output mechanism. They can output the Safe Value while
PROFI-8455 has been changed to stop mode (or offline mode). The safe value can make sure of the correctness of operating. There are three modes in safe value for users: Retain Last Value, Clear Output and Switch to
Substitute Value.
Retain Last Value is that PROFI-8455 retain the last valid output value for the corresponding channel.
Clear Output clear the corresponding channel to analog zero volt, analog zero ampere or digit logic “0”.
Substitute Value follows Safe mode selection in module parameter, it is setting by user, it must be obey the data range of corresponding data format and type-code.
The following figure shows the state flow of Wait Parameter.
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Configuration data is consisting of module-identifier. The main purpose is to check the configuration data from DP-Master against the stored one in PROFI-8455. If these configuration data is coincident between PROFI-8455 and DP-master, the DP-mode of PROFI-8455 will proceed from wait configuration to data exchange. Otherwise,
PROFI-8455 will report “Cfg Fault” and change DP-mode to wait parameter again.
The configuration data specifies the number of input and output bytes of PROFI-8455. PROFI-8455 applies this information to allocate appropriate number of memory space for the module plugged in I/O expansion slot on PROFI-8455. The maximum number of Input and output byte are 128 bytes each. It is not permitted to exceed this quantity. The following table shows the module name and corresponding input byte, output byte and configuration code.
Module name i-8017HS – S
1 i-8017H(S) – D
2
Input Length Output Length
16 Byte(8*2)
32 Byte(16*2)
0
0
Cfg Code
0x57
0x5F i-8042 i-8050 i-8054 i-8055 i-8056 i-8057
2 Byte
2 Byte
1 Byte
1 Byte
0 Byte
0 Byte
2 Byte
2 Byte
1 Byte
1 Byte
2 Byte
2 Byte
0x31
0x31
0x30
0x30
0x21
0x21
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i-8063 1 Byte 1 Byte 0x30 i-8077 i-87018(R)
(w/ CJC Read/Offset)
18
Byte(8*2+2
@1
) i-87018Z
(w/ CJC Read/Offset) i-87019R
(w/ CJC Read/Offset)
1 Byte
22 Byte
(10*2+2
@1
18
)
Byte(8*2+2
@1
)
1 Byte 0x20
1 0xC0,0x00,0x2F
0x53
0x56
0x57
0x57
0x57
0x57
2 Byte(0+2
@2
) 0x57,0xC0,0x01,
0x40
0 0x59
3 Byte(0+3
@2
) 0x59,0xC0,0x02,
0x40
0x57
3 Byte(0+3
@2
) 0x57,0xC0,0x02,
0x40 i-87040(W)(w/ Cnt) 68 Byte(4+32*2) 5 Byte(0+4) 0x13,0xC0,0x03,
0x5F i-87046W(w/ Cnt) 34 Byte(2+16*2) 2Byte(0+2) 0x11,0xC0,0x01,
0x4F
0x11 i-87051(W)(w/ Cnt) 34 Byte(2+16*2) 2 Byte(0+2) 0x11,0xC0,0x01,
0x4F i-87052(W)(w/ Cnt) 17 Byte(1+8*2) 1 Byte(0+1) 0x10,0xC0,0x00,
0x47
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0x11 i-87053(W)(w/ Cnt) 34 Byte(2+16*2) 2 Byte(0+2) 0x11,0xC0,0x01, i-87054(W) 1 Byte 1 Byte
0x4F
0x30 i-87054(W)(w/ Cnt) 17 Byte(1+8*2) 2 Byte(1+1) 0x30,0xC0,0x00,
0x47 i-87055(W) 1 Byte i-87063(W) i-87063(w/ Cnt)
1 Byte
9 Byte(1+4*2) i-87082
-S
1
means single-end input mode
-D
2
means differential input mode
9 Byte
1 Byte i-87055(W)(w/ Cnt) 17 Byte(1+8*2) 2 Byte(1+1) 0x30,0xC0,0x00, i-87058(W)(w/ Cnt) 17 Byte(1+8*2) 1 Byte(0+1) 0x10,0xC0,0x00,
1 Byte
0x30
0x47
0x47
0x30
2 Byte(1+1) 0x30,0xC0,0x00,
0x43
1 Byte(1 OR 1) 0x53,0x10,0x20
- Data length of analog input module = channel number * data length per channel.
-Data length of digital input module = the length of basic input data + channel number * data length of counter per channel.
-Data length of digital output module = the length of basic output data + optional data length of clear command.
-OR means DO data have combined with Clear command into one byte.
@
1
means the data length of CJC temperature.
2
means the data length of CJC offset setting command.
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The figure is shown below the state flow of Wait Configuration.
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After the parameterization and configuration processes have been accomplished, PROFI-8455 exchanges I/O data with the DP-Master cyclically. In following section, we introduce the Numeric Notation and
Byte Order briefly.
Among Analog Input modules or Analog Output modules, there are many numeric representations, include Engineer-Unit, Hexadecimal, Percentage of
Full Scale and Ohm in Engineer-Unit. We will introduce the numeric representation in i-8K module and i-87K module.
Analog Input Module ( i-8017H, i-8017HS)
+/- 10 V
：
The range for Engineer-Unit: -10000~10000(mV)
The range for 2’s complement hexadecimal: 0000~1FFF (0v ~ 10v),
2000~3FFF (-10v~1.22mV)
Conversion from Engineer-Unit to 2’s complement hexadecimal:
HexValue
=
EngineerValue
×
10000
HexValue
=
EngineerValue
×
10000
Measurement Value
+10v(Engineer mode)
0v(Engineer mode)
-10v(Engineer mode)
+10v(Hex mode)
+5v(Hex mode)
0v(Hex mode)
-5v(Hex Mode)
-10v(Hex mode)
0
0
≤
EngineerValue
Decimal
10000
-10000
8191
4095
12288
8192
≤
≤
10000
EngineerValue
<
0
Hexadecimal
0x2710
0x0000
0xD8F0
0x1FFF
0x1000
0x0000
0x3000
0x2000
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+/- 5 V
：
The range for Engineer-Unit: -5000~5000(mV)
The range for 2’s complement hexadecimal: 0000~1FFF (0v ~ 5v),
2000~3FFF (-5v~0.61mV)
Conversion from Engineer-Unit to 2’s complement hexadecimal:
HexValue
=
EngineerValue
×
5000
≤
EngineerValue
≤
5000
HexValue
=
EngineerValue
×
5000
Measurement Value
+5v(Engineer mode)
0v(Engineer mode)
-5v(Engineer mode)
+5v(Hex mode)
+2.5v(Hex mode)
0v(Hex mode)
-2.5v(Hex mode)
-5v(Hex Mode)
Decimal
5000
0
-5000
8191
4095
0
12288
8192
≤
EngineerValue
<
0
Hexadecimal
0x1388
0x0000
0xEC78
0x1FFF
0x1000
0x0000
0x3000
0x2000
+/- 2.5 V
：
The range for Engineer-Unit: -2500~2500(mV)
The range for 2’s complement hexadecimal: 0000~1FFF (0v ~ 2.5v),
2000~3FFF (-2.5v~0.3mV)
Conversion from Engineer-Unit to 2’s complement hexadecimal:
HexValue
=
EngineerValue
×
2500
≤
EngineerValue
≤
2500
HexValue
=
EngineerValue
×
2500
Measurement Value
+2.5v(Engineer mode)
0v(Engineer mode)
-2.5v(Engineer mode)
+2.5v(Hex mode)
+1.25v(Hex mode)
0v(Hex mode)
-1.25v(Hex mode)
-2.5v(Hex Mode)
Decimal
2500
0
-2500
8191
4095
0
12288
8192
≤
EngineerValue
<
0
Hexadecimal
0x09C4
0x0000
0xF63C
0x1FFF
0x1000
0x0000
0x3000
0x2000
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+/- 1.25 V
：
The range for Engineer-Unit: -1250~1250(mV)
The range for 2’s complement hexadecimal: 0000~1FFF (0v ~ 1.25v),
2000~3FFF (-1.25v~0.15mV)
Conversion from Engineer-Unit to 2’s complement hexadecimal:
HexValue
=
EngineerValue
×
1250
≤
EngineerValue
≤
1250
HexValue
=
EngineerValue
×
1250
Measurement Value
+1.25v(Engineer mode)
0v(Engineer mode)
-1.25v(Engineer mode)
+1.25v(Hex mode)
+0.675v(Hex mode)
0v(Hex mode)
-0.675v(Hex mode)
-1.25v(Hex Mode)
Decimal
1250
0
-1250
8191
4095
0
12288
8192
≤
EngineerValue
<0
Hexadecimal
0x04E2
0x0000
0xFB1E
0x1FFF
0x1000
0x0000
0x3000
0x2000
+/- 20 mA
：
The range for Engineer-Unit: -20000~20000(mV)
The range for 2’s complement hexadecimal: 0000~1FFF (0mA ~
20mA), 2000~3FFF (-20mA ~ -2.44uA)
Conversion from Engineer-Unit to 2’s complement hexadecimal:
HexValue
=
EngineerValue
×
20000
≤
EngineerValue
≤
20000
HexValue
=
EngineerValue
×
20000
Measurement Value
20mA(Engineer mode)
10mA(Engineer mode)
0v(Engineer mode)
20mA(Hex mode)
10mA(Hex mode)
0v(Hex mode)
Decimal
20000
10000
0
8191
4095
0
≤
EngineerValue
<0
Hexadecimal
0x4E20
0x2710
0x0000
0x1FFF
0x1000
0x0000
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Analog output module ( I-8024)
：
+/- 10 V
：
The range for Engineer-Unit: -10000~10000(mV)
The range for 2’s complement hexadecimal: 0000~7FFF (0v ~ 10v),
8000~FFFF (-10v~0.3mV)
Conversion from Engineer-Unit to two’s complement hexadecimal:
HexValue
=
EngineerValue
×
10000
≤
EngineerValue
≤
10000
HexValue
=
EngineerValue
×
10000
Measurement Value
10v(Engineer mode)
0v(Engineer mode)
-10v(Engineer mode)
10v(Hex mode)
0v(Hex mode)
-10v(Hex mode)
Decimal
10000
0
-10000
32767
0
-32768
≤
EngineerValue
<0
Hexadecimal
0x2710
0x0000
0xD8F0
0x7FFF
0x1000
0x8000
20mA
The range for Engineer-Unit: -20000~20000(mV)
The range for 2’s complement hexadecimal: 0000~7FFF (0v ~ +20mA)
Conversion from Engineer-Unit to 2’s complement hexadecimal:
HexValue
=
EngineerValue
×
20000
Measurement Value
20mA(Engineer mode)
0mA(Engineer mode)
20mA(Hex mode)
0mA(Hex mode)
Decimal
20000
0
32767
0
Hexadecimal
0x4E20
0x0000
0x7FFF
0x0000
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i-87K modules are serial communication-based I/O modules, they provide various data formats. For example, Engineer-Unit, Percentage of
Full Scale, 2’s Complement Hexadecimal and Ohm format are supported in these modules. The relationship between the type of measurement and the unit of measurement is represented in the following table.
Type Conditions
Voltage/Current -10V
≦
Voltage
≦
10V
20mA
≧
Current
≧
-20mA
Voltage Voltage
≧
10V or
Voltage
≦
-10V
Unit milli-Volt(mV) micro-Ampere(µA)
Volt(V)
Temperature RTD/Pt/Ni/Cu-RTD/Thermocouple 0.1 Degree Celsius
and
Analog Input Module
Type-Code Input Range Data Format
20
Pt-100 (a =
0.00385) -100°C to
100°C
Engineer Unit
% of FSR
2's complement HEX
Max.
+1000
Min
-1000
+10000 -10000
7FFF 8000
21
Pt-100 (a =
0.00385) 0°C to
100°C
Engineer Unit
% of FSR
2's complement HEX
+1000 +0000
+10000 +00000
7FFF 0000
22
23
24
Pt-100 (a =
0.00385) 0°C to
200°C
Engineer Unit
% of FSR
2's complement HEX
+2000 +0000
+10000 +00000
7FFF 0000
Pt-100 (a =
0.00385) 0°C to
600°C
Engineer Unit
% of FSR
2's complement HEX
+6000 +0000
+10000 +00000
7FFF 0000
Pt-100 (a =
0.003916) -100°C to
100°C
Engineer Unit
% of FSR
2's complement HEX
+1000 -1000
+10000 -10000
7FFF 8000
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25
26
27
28
29
2A
2B
2C
*1
2D
*1
2E
*1
*2
Pt-100 (a =
0.003916) 0°C to
100°C
Engineer Unit
% of FSR
2's complement HEX
+1000 +0000
+10000 +00000
7FFF 0000
Pt-100 (a =
0.003916) 0°C to
200°C
Engineer Unit
% of FSR
2's complement HEX
+2000 +0000
+10000 +00000
7FFF 0000
Pt-100 (a =
0.003916) 0°C to
600°C
Engineer Unit
% of FSR
2's complement HEX
+6000 +0000
+10000 +00000
7FFF 0000
Nickel 120
-80°C to 100 °C
Engineer Unit
% of FSR
2's complement HEX
+1000 -0800
+10000 -08000
7FFF 999A
Nickel 120
0°C to 100°C
Engineer Unit
% of FSR
2's complement HEX
+1000 +0000
+10000 +00000
7FFF 0000
Pt-1000(a =
0.00385) -200°C to
600°C
Engineer Unit
% of FSR
2's complement HEX
+6000 -2000
+10000 -03333
7FFF D556
Cu 100 (a =
0.00421) -20°C to
150°C
Engineer Unit
% of FSR
2's complement HEX
+1500 -0200
+10000 -01333
7FFF EEEF
Cu 100 a = 0.00421
0°C to 200°C
Engineer Unit
% of FSR
2's complement HEX
+2000 0000
+10000 -00000
7FFF 0000
Cu 1000 a =
0.00421
-20°C to 150°C
Pt 100 a = 0.00385
-200°C to +200°C
Engineer Unit
% of FSR
2's complement HEX
+1500 -0200
+10000 -01333
7FFF EEEF
Engineer Unit
% of FSR
+2000 -2000
+10000 -10000
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2F
80
81
*2
*2
*2
2's complement HEX 7FFF 8000
Engineer Unit
Pt 100 a = 0.003916
-200°C to +200°C
% of FSR
2's complement HEX
+2000 -2000
+10000 -10000
7FFF 8000
Pt 100 a = 0.00385
-200°C to +600°C
Engineer Unit
% of FSR
2's complement HEX
+6000 -2000
+10000 -03333
7FFF D556
Pt 100 a = 0.003916
-200°C to +600°C
Engineer Unit
% of FSR
2's complement HEX
+6000 -2000
+10000 -03333
7FFF D556
* 1: Type 2B, 2C and 2D are only available with i-87015.
* 2: Type 2E, 2F, 80 and 81 are only available with the i-87015 firmware version A1.10 and later, i-87013 firmware version B1.3 and later.
/
Analog Input Module
Type-Code Input Range Data Format Max. Min
08 -10V to +10V
Engineer Unit
% of FSR
+10000 -10000
+10000 -10000
09 -5V to +5V
2's Complement HEX
Engineer Unit
% of FSR
2's Complement HEX
7FFF 8000
+50000 -50000
+10000 -10000
7FFF 8000
0A
0B
0C
0D
-1V to +1V
-500mV to +500mV
-150mV to +150mV
-20mA to +20mA
Engineer Unit
% of FSR
2's Complement HEX
Engineer Unit
% of FSR
2's Complement HEX
Engineer Unit
% of FSR
2's Complement HEX
Engineer Unit
+10000 -10000
+10000 -10000
7FFF
+500
8000
-500
+10000 -10000
7FFF 8000
+150 -150
+10000 -10000
7FFF 8000
+20000 -20000
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% of FSR
Type-Code Input Range
2's Complement HEX
Analog Input Module
Data Format
Engineer Unit
+10000 -10000
7FFF 8000
Max. Min
+04000 +20000
07 -4mA to +20mA
% of FSR +10000 -10000
2's Complement HEX
Engineer Unit
7FFF 8000
+20000 -20000
1A +0A to +20mA
% of FSR
2's Complement HEX
Engineer Unit
% of FSR
Type-Code Input Range
2's Complement HEX
Analog Input Module
Data Format
+10000 -10000
7FFF 8000
+00000 +20000
+10000 -10000
7FFF 8000
1C -50V to +50V
Engineer Unit
% of FSR
2's Complement HEX
Engineer Unit
% of FSR
Max.
+150
7FFF
Min
-150
+10000 -10000
8000
+50 -50
+10000 -10000
2's Complement HEX
Analog Input Module
Type-Code Input Range Data Format
Engineer Unit
% of FSR
7FFF
Max.
+15
8000
Min
-15
+10000 -10000
2's Complement HEX 7FFF 8000
02
03
-100mV to +100mV
-500mV to +500mV
Engineer Unit
% of FSR
+50 -50
+10000 -10000
2's Complement HEX 7FFF
Engineer Unit +100
8000
-100
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit +500 -500
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04
05
-1V to +1V
-25V to +25V
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit
% of FSR
+10000 -10000
+10000 -10000
2's Complement HEX 7FFF
Engineer Unit
8000
+25000 -25000
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit
% of FSR
+20000 -20000
+10000 -10000
2's Complement HEX 7FFF
Engineer Unit +7600
8000
-2100
% of FSR +10000 -02763
2's Complement HEX 7FFF DCA2
Engineer Unit
% of FSR
+13720 -02700
+10000 -01968
2's Complement HEX 7FFF
Engineer Unit +4000
E6D0
-2700
% of FSR +10000 -06750
2's Complement HEX 7FFF A99A
Engineer Unit
% of FSR
+10000 -02700
+10000 -02700
2's Complement HEX 7FFF
Engineer Unit
DD71
+17680 +00000
% of FSR +10000 +00000
2's Complement HEX 7FFF 0000
Engineer Unit
% of FSR
+17680 +00000
+10000 +00000
2's Complement HEX 7FFF
Engineer Unit
0000
+18200 +00000
% of FSR +10000 +00000
2's Complement HEX 7FFF 0000
Engineer Unit
% of FSR
+13000 -02700
+10000 -02077
2's Complement HEX 7FFF E56B
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19
L Type
DIN43710
Engineer Unit
% of FSR
+23200 +00000
+10000 +00000
2's Complement HEX 7FFF
Engineer Unit +8000
0000
-2000
% of FSR +10000 -02500
2's Complement HEX 7FFF E000
Engineer Unit
% of FSR
+1000 -2000
+05000 -10000
2's Complement HEX
Engineer Unit
4000
+9000
8000
-2000
% of FSR +10000 -02222
2's Complement HEX 7FFF E38F
Analog Input Module
Type-Code Input Range Data Format
Engineer Unit
Max.
+15
Min
-15
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit
% of FSR
+50 -50
+10000 -10000
02
03
-100mV to +100mV
-500mV to +500mV
2's Complement HEX 7FFF
Engineer Unit +100
% of FSR
8000
-100
+10000 -10000
2's Complement HEX 7FFF
Engineer Unit +500
% of FSR
8000
-500
+10000 -10000
04
05
-1V to +1V
-2.5V to +2.5V
2's Complement HEX 7FFF
Engineer Unit
8000
+10000 -10000
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit
% of FSR
+25000 -25000
+10000 -10000
2's Complement HEX 7FFF 8000
% of FSR
+20000 -20000
+10000 -10000
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08
09
0A
0B
0C
-10V to +10V
-5V to +5V
-1V to +1V
-500mV to +500mV
-150mV to +150mV
2's Complement HEX 7FFF
Engineer Unit
8000
+10000 -10000
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit +50000 -50000
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit +10000 -10000
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit +500 -500
% of FSR +10000 -10000
2's Complement HEX 7FFF 8000
Engineer Unit
% of FSR
+150 -150
+10000 -10000
2's Complement HEX 7FFF
Engineer Unit
8000
+20000 -20000
% of FSR +10000 -10000
2's Complement HEX 7FFF
Engineer Unit +7600
% of FSR
8000
-2100
+10000 -02763
2's Complement HEX 7FFF
Engineer Unit
DCA2
+13720 -02700
% of FSR +10000 -01968
2's Complement HEX 7FFF E6D0
Engineer Unit
% of FSR
+4000
2's Complement HEX 7FFF
-2700
+10000 -06750
A99A
Engineer Unit
% of FSR
+10000 -02700
+10000 -02700
2's Complement HEX 7FFF DD71
Engineer Unit
% of FSR
+17680 +00000
+10000 +00000
2's Complement HEX 7FFF 0000
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19
L Type
DIN43710
Analog Output Module
Type-Code Input Range
% of FSR +10000 +00000
2's Complement HEX 7FFF 0000
Engineer Unit
% of FSR
+18200 +00000
+10000 +00000
2's Complement HEX 7FFF 0000
Engineer Unit
% of FSR
+13000 -02700
+10000 -02077
2's Complement HEX 7FFF E56B
Engineer Unit
% of FSR
+23200 +00000
+10000 +00000
2's Complement HEX 7FFF 0000
Engineer Unit
% of FSR
+8000 -2000
+10000 -02500
2's Complement HEX 7FFF
Engineer Unit +1000
E000
-2000
% of FSR
2's Complement HEX
Engineer Unit
+05000 -10000
4000
+9000
8000
-2000
% of FSR +10000 -02222
2's Complement HEX 7FFF E38F
0
1
2
0mA to 20mA
4 mA to 20mA
0V to 10V
Data Format Max. Min
Engineer Unit 20000 00000
% of FSR
Hexadecimal
+10000 +00000
FFF 000
Engineer Unit 20000 04000
% of FSR +10000 +00000
Hexadecimal FFF 000
Engineer Unit 10000 00000
% of FSR
Hexadecimal
+10000 +00000
FFF 000
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Analog Output Module
Type-Code Input Range
0
1
2
0 mA to 20mA
4 mA to 20mA
0V to 10V
Data Format Max. Min
Engineer Unit 20000 00000
% of FSR
Hexadecimal
+10000 +00000
FFFF 0000
Engineer Unit 20000 04000
% of FSR +10000 +00000
Hexadecimal FFFF 0000
Engineer Unit 10000 00000
% of FSR
Hexadecimal
+10000 +00000
FFFF 0000
Analog Output(Only support Engineer Unit)
Type-Code
30
Input Range Data Format Max. Min
0 mA to 20mA Engineer Unit +20000 +00000
31
32
4 mA to 20mA Engineer Unit +20000 +04000
0V to 10V Engineer Unit +10000 +00000
33
34
35
-10V to 10V Engineer Unit +10000 -10000
0V to 5V
-5V to 5V
Engineer Unit +05000 +00000
Engineer Unit +05000 -05000
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The general digital input or output module arrange its data with big-endian in follow (i-8040 or i-87040).
The little-endian is shown as follows.
The Digital input modules in i-87K series not only provide a basic input function but also have a function of counter which maximum count can be up to 65535. You can choose that in GSD file of PROFI-8455 with the module
“i-870XX w/ Counter Func.”. The figure shows below is data arrangement of i-87040 w/ Counter.
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Analog module (without CJC function) has the I/O data of 2 byte per channel. For example, the following figure shows data arrangement of i-87024(i-8024).
Note: The order of input or output data is ranked by channel’s identifier, so the channel with lower id value has priority over the channel with higher id.
The temperature signal is a kind of analog signals. i-87K modules(i-87013, i-87015, i-87018 and i-87019) provide several solutions to measure the different temperature sensors. Regardless of RTD and thermistor, it is important to note that thermocouples have the following property. The thermocouples measure the temperature difference between hot junction point and cold junction point. But the ordinary thermocouples have no cold-junction point so it can not measure the accuracy temperature using only hot junction
PROFI-8455 Remote I/O Unit User Manual
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point. In order to solve this problem, i-87K modules which use thermocouple to measure temperature support the Cold Junction Compensation by an internal temperature sensor. Although CJC’s problem has been dealt, there is a problem still remained. The problem is that CJC temperature sensor has some varieties compare to practical temperature. Therefore, PROFI-8455 provides an output byte to calibration this difference. The following figure is data arrangement of i-87024 w/ CJC Read/Offset.
The bytes of CJC offset have a detail description as follows. There are two kinds of data length, 2 bytes and 3 bytes. The data length with 2 byte is used in CJC without individual channel configure and the data length with 3 byte is used in CJC with individual channel configure.
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Bit. Byte0.3~0 Byte1.7 Byte1.6 Byte1.5
Func. Chn.Sel. Ena/Disa Reserved Sign Offset-Value(0.01
℃
)
Bit. Byte2.3~0 Byte1.7 Byte1.6 Byte1.5
Func. Chn.Sel. Ena/Disa Reserved Sign Offset-Value
Func. Meaning
Chn.Sel.(8bits)
*
Channel Selection(0~8)
Description
CJC Calibration Channel
Ena/Disa(1bit)
Offset-Value
(13bit)
Enable/Disable
Reserved(1bit) Reserved
Sign(1bit) Sign (0 -> Pos, 1-> Neg)
Offset value
CJC Calibration Enable
Plus or minus offset value to calibration temperature
Offset value compare to practice temperature
*: This field is only available in i-87019R. “Chn.Sel.” from 0 to 7 is corresponding to channel 0 to channel 7 and Chn.Sel. 8 is a broadcast channel id that available to all channel.
Note: The maximum value of Offset-Value for i-87019R is 4096 and its unit is
0.01
℃
; The value for i-87108Z is 127 and its unit is 0.1
℃
Note: While Enable/Disable is set (“1”), the calibration works.
Note: The length of output data in i-87018(R/W) is 2 bytes, and 3 bytes for i-87019R and i-87018Z.
i-8080 and i-87082 are counter/frequency module, the differences between them describe in the following table.
Module Name
Count Range
Frequency Range i-8080 i-87082
0~2
48
(Count+Overflow) 0~2
32
(Count)
0~450KHz
Overflow 0~2
Channel Number
16
8(Up & Freq) or 4(others)
0~100KHz
0~1
2
The following figure shows the data arrangement of input data. It includes the normal count (4 Bytes) and overflow count (2bytes).
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the counter, and the others are the count value of each channel. The bit arrangement of the last input byte is shown below
There are nine input bytes in i-87082. The last byte indicates the status of
Bit.
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
The following figure shows the data arrangement of the input bytes in i-87082 module.
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There is an additional function in both of i-8080 and i-87082. That is
“Counter Clear” command. The clear command of i-8080 is the same as i-87082. It just set the corresponding bit to “1”(Level-trigger) or set it from “0” to
“1” (Edge-trigger) then the count value of corresponding channel will clear soon, as show below.
Bit. 7 6 5 4 3 2 1 0
Func. Clr7 Clr6 Clr5 Clr4 Clr3 Clr2 Clr1 Clr0
Func. Meaning
ClrN
Description
Clear Count of Channel N Clear both overflow and count value and ”Stop Count”. These functionalities increase the applicability of i-87082 module. For more detail description, please refer to the following table. i-87082 provide more functionality than i-8080. They are “Start Count”
Func. E-DO.1 E-DO.0 DO.1 DO.0 C1.S1 C1.S0 C0.S1 C0.S0
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Func. Meaning
E-DO.1
E-DO.0
Enable DO.1
Enable DO.0
DO.1
DO.0
Digital Output CH1
Digital Output CH0
C1.S1 Channel 1 Func.Sel. 1
C1.S0 Channel 1 Func.Sel. 0
C0.S1 Channel 0 Func.Sel. 1
C0.S0 Channel 0 Func.Sel. 0
Descriptions
Enable=1, DO.1 is output.
Enable=0, No output.
Enable=1, DO.0 is output.
Enable=0, No output.
Digital Output value of Channel 1.
Digital Output value of Channel 0.
Channel 1 Function Selection.
See table below.
Channel 0 Function Selection.
See table below.
Func.S1 Func.S0 Function
The following table shows the memory allocation of standard I/O and
Counter / Frequency module, and we divide this table into four parts: The first table describes each function’s meaning. The second table shows the input allocation of standard I/O, the third table shows the output allocation of standard I/O and the last part shows the Input/Output memory allocation of the
Counter/Frequency module. We have simplified the following tables. The remainders of the table must be deduced by users.
Function Name
D a~b
A.N
a~b
C.N
a~b
CJC a~b
Clr a~b
OvN a~b
Meaning
Digital I/O Value(bit a~b)
Analog Value of Channel N(bit a~b)
Count Value of Channel N(bit a~b)
CJC Temperature(bit a~b)
Clear Command(bit a~b)
Overflow Indicator(bit a~b)
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Meas.Type
DI DI w/ Count AI AI w/ CJC.read
Byte.Order Big Little Big Little Big Little Big Little
BYTE.0 D
24~31
BYTE.1 D
16~23
BYTE.2 D
8~15
BYTE.3 D
0~7
D
0~7
D
8~15
D
16~23
D
24~31
D
24~31
D
16~23
D
8~15
D
0~7
C.0
8~15
C.0
0~7
C.1
8~15
C.1
0~7
C.2
8~15
C.2
0~7
C.3
8~15
C.3
0~7
C.4
8~15
C.4
0~7
C.5
8~15
C.5
0~7
C.6
8~15
C.6
0~7
D
0~7
D
8~15
D
16~23
D
24~31
C.0
0~7
C.0
8~15
C.1
0~7
C.1
8~15
C.2
C.2
C.3
C.3
C.4
C.4
C.5
C.5
C.6
C.6
0~7
8~15
0~7
8~15
0~7
8~15
0~7
8~15
0~7
8~15
A.0
8~15
A.0
0~7
A.1
8~15
A.1
0~7
A.2
8~15
A.2
0~7
A.3
8~15
A.3
0~7
A.4
8~15
A.4
0~7
A.5
8~15
A.5
0~7
A.6
8~15
A.6
0~7
A.7
8~15
A.7
0~7
A.0
0~7
A.0
8~15
A.1
0~7
A.1
8~15
A.2
0~7
A.2
8~15
A.3
0~7
A.3
8~15
A.4
0~7
A.4
8~15
A.5
0~7
A.5
8~15
A.6
A.6
A.7
A.7
0~7
8~15
0~7
8~15
A.0
8~15
A.0
0~7
A.1
8~15
A.1
0~7
A.2
8~15
A.2
0~7
A.3
8~15
A.3
0~7
A.4
8~15
A.4
0~7
A.5
8~15
A.5
0~7
A.6
A.6
A.7
A.7
8~15
0~7
8~15
0~7
CJC
8~15
CJC
0~7
A.0
0~7
A.0
8~15
A.1
0~7
A.1
8~15
A.2
0~7
A.2
8~15
A.3
0~7
A.3
8~15
A.4
0~7
A.4
8~15
A.5
0~7
A.5
8~15
A.6
0~7
A.6
8~15
A.7
0~7
A.7
8~15
CJC
0~7
CJC
8~15
Meas.Type DO DI w/ Count AO AI w/ CJC.offset
Byte.Order Big Little Big Little Big Little Big Little
BYTE.0 D
24~31
BYTE.1 D
16~23
D
0~7
D
8~15 clr
24~31 clr
16~23 clr
0~7 clr
8~15
A.0
8~15
A.0
0~7
A.0
0~7
A.0
8~15
ChnSel offset
7~0
Ena& Ena& offset
8~15 offset
8~15
BYTE.2 D
8~15
BYTE.3 D
0~7
D
16~23
D
24~31 clr
8~15 clr
0~7 clr
16~23 clr
24~31
A.1
A.1
8~15
0~7
A.2
8~15
A.2
0~7
A.3
8~15
A.3
0~7
A.4
8~15
A.4
0~7
A.5
8~15
A.5
0~7
A.1
0~7
A.1
8~15
A.2
0~7
A.2
8~15
A.3
0~7
A.3
8~15
A.4
0~7
A.4
8~15
A.5
0~7
A.5
8~15 offset
7~0
ChnSel
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Meas.Type i-8080.Inp. i-8080.Outp. i-87082.Inp i-87082.Outp
Byte.Order Big
BYTE.0 C0
24~31
Little Big Little Big
C0
0~7
Clr
0~7
Clr
0~7
C0
24~31
Little Big
C0
0~7
E-DO.1
/E-DO.2
Little
E-DO.1
/E-DO.2
/DO.1
/DO.0
/C1.S1
/C1.S0
/C0.S1
/DO.1
/DO.0
/C1.S1
/C1.S0
/C0.S1
/C0.S0 /C0.S0
BYTE.1 C0
16~23
BYTE.2 C0
8~15
BYTE.3 C0
0~7
BYTE.4 Ov0
8~15
BYTE.5 Ov0
0~7
BYTE.6 C1
24~31
BYTE.7 C1
16~23
BYTE.8 C1
8~15
BYTE.9 C1
0~7
BYTE.10 Ov1
8~15
BYTE.11 Ov1
0~7
BYTE.12 C2
24~31
BYTE.13 C2
16~23
BYTE.14 C2
8~15
BYTE.15 C2
0~7
BYTE.16 Ov2
8~15
BYTE.17 Ov2
0~7
C0
C0
C0
8~15
16~23
24~31
Ov0
Ov0
0~7
8~15
C1
0~7
C1
8~15
C1
16~23
C1
24~31
Ov1
0~7
Ov1
8~15
C2
0~7
C2
8~15
C2
16~23
C2
24~31
Ov2
0~7
Ov2
8~15
C0
C0
C0
C1
C1
C1
C1
Ov0
16~23
8~15
0~7
24~31
16~23
8~15
0~7
0~1
C0
C0
C0
C1
C1
C1
C1
8~15
16~23
24~31
0~7
8~15
16~23
24~31
Ov0
0~1
The following figures shown below describe the state flow of data exchange. The first figure shows the state flow of data exchange. There are four modules (i-87018Z, i-87024, i-87017W and i-87082) plugged in
PROFI-8455.
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The second figure shows another state flow of data exchange.
T here is no output module that installation in PROFI-8455 and only input module install.
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The diagnostic messages report to DP-Master when the DP-Slave has errors or the unusual event is happened. Usually, It report diagnosis due to following standard channel-related event. Error code “2”,”3”,”5”,”6”,”7” and ”8” are supported by PROFI-8455.
Error Code Error Type
0 Reserved
2 Under-voltage
3 Over-voltage
4 overload
5 Over-temperature
7 Upper Limit Value Exceeded(Current)
8 Lower Limit Value Exceeded(Current, Sensor)
9 Error
10~15 Reserved
PROFI-8455 provides diagnosis report for Analog I/O and
Counter/Frequency module. In Analog I/O module, the reason of diagnosis reports is that the input/output/count exceeds the default maximum value/ minimum value or temperature sensor line break. In Counter/Frequency modules (I-87082 only), it usually due to the count exceeds the setting of
“Maximum Count of Counter N” that set by Set_Prm telegram.
You need to know that the error or unusual event occurring continuously will induce to long data exchange period. In other words, the times of data exchange in the specific time interval will decrease relatively. And diagnosis report will become the burden in the application consequently. Therefore, it is important to choose an appropriate period of diagnosis report to instead of immediate diagnosis report.
In PROFI-8455, the number of channel-related diagnostic message is limit to 39. The diagnostic messages large than 128 bytes (39 channel -related diagnoses) will be ignore. And the time interval of diagnosis report has maximum number of 65535 and minimum number of 0.
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The channel-related diagnosis has been described above. There is another kind of diagnosis provided by PROFI-8455; it is called device-related diagnosis. The device-related diagnosis in PROFI-8455 is “Offline-Detection”.
When the module is unplugged or breakdown, PROFI-8455 will report the error with device-related diagnosis. The error-id and corresponding meaning is shown in following table.
Error ID
1
2
4
8
Meaning
Slot 0- Module Offline
Slot 1- Module Offline
Slot 2- Module Offline
Slot 3- Module Offline
Several offline modules can be detected at the same time. PROFI-8455 combines these Error-IDs into one byte and return to DP-Master once. For example, we can know that all the modules in PROFI-8455 are disconnect
(offline) when DP-Master gets a device-related diagnosis with error code “15”.
There are two examples that describe different error or warning event as follows. The first example is about that the I-87082 module unplugged out of
PROFI-8455 and the diagnostic message reports. The following figure can shows the report process.
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The second example is about the input value of channel 0 of I-8017W is larger than threshold value, and the diagnostic message reports. The following figure can shows the report process.
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Before establish the connection between DP-Master and PROFI-8455, user should obey the following step first.
First, users must load the electronic device description file(GSD file) of the
PROFI-8455 into the DP-Master, then set the parameters of the modules plugged in PROFI-8455 respectively. Finally change your DP-master from
Offline state to Operate state. While DP-Master changes to operate mode,
PROFI-8455 will initial the modules. Then PROFI-8455 allocates the memory space and waits for Set_Prm telegram. The next step is waiting for Chk_Cfg telegram in order. If there is no error occurs, PROFI-8455 proceeds into data exchange state. Users can observe the status indicator LED to know the state of PROFI-8455. At the meantime, if there is any error occurs, PROFI-8455 will return to wait parameterization.
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If you want to know the round-trip time of a data exchange telegram, you must know how a byte enveloped into a serial stream. In series communication, the byte transmission includes start bit, stop bit, data field and optional parity. According to the PROFIBUS specification, there is no parity bit in transmission. Therefore, one data byte will be encoded to 11 bits.
Consequently, the telegram cycle time of data exchange will calculate as follow.
T = (Output data Bit Time (header include) + Station Reaction Bit Time +
Input Data Bit Time (header include) + Bus Idle Bit Time + Sync-Bit Time) *
Transmission Time per Bit.
Output Data Bit Time (header include) = (9 + length of output data in Byte)
* 11
Station Reaction Time = Any Value that large than Min.Tsdr and smaller than Max.Tsdr
There is look up table between Baud Rate and Max.Tsdr. (This information is in GSD file)
Baud Rate(in bit per second) Max.Tsdr (in Tbit)
9600 60
19,200 60
454,500 60
937,500 60
187,500 60
500,000 100
1,500,000 150
3,000,000 250
6,000,000 450
12,000,000 800
Input Data Bit Time (header include) = (9 + length of input data in Byte) *
11
max
T
SYN
+ T
SM
, min T
SDR
, T
SDI
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For the detail, please refer to PROFIBUS Specification.
Sync. Bit Time = 33 (constant)
Transmission Time per Bit = the inverse of Baud Rate.
For example:
The data transmission time with 15 bytes output data and 30 bytes input data in 12Mbps is calculated as follows.
Parameter
：
T
SYN
=33 Tbits
T
T
ID1
=75 Tbits (1.5M BR)
SDR
=30 Tbits (1.5M BR)
Min_Slave_Interval = 1
The time is as follows.
T = ( (9+15) * 11 + 30 + (9+30) * 11 + 33 + 75 ) / 12*10
6
= 69.25uS
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In this chapter, we make a demo with PROFI-8455 and the DP-Master of
SyCon company. The demo is shown how to apply the PROFI-8455 in a realistic system.
1. New a project:
Click <File->New> to establish a PROFIBUS project.
2. Import GSD file:
Click <File->CopyGSD> to copy IPDS0B0C.gsd file into your SyCon.
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3. Add DP-Master to PROFIBUS network:
Adding corresponding PROFIBUS DP Master into PROFIBUS network, and modify the station address yourself.
4. Add DP-Slave to PROFIBUS network:
After copying the GSD file into SyCon, you can add “PROFI-8455” to
PROFIBUS network, and modify the station address yourself.
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5. Modify the configuration of PROFI-8455:
1. Add module(s):
Add the module(s) you want to use. In this example, we choose i-8017H and i-8024.
2. Modify parameter data
：
Click <Parameter Data> button in right-up corner of the windows, and modify the “Common” and “Module” parameter by your preference. In this example, we use default setting.
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6. Download the network configuration to DP-Master
：
Click <Online->Download> to download the network setting into CIF
50-PB card.
7. Install Module(s):
In this example, we plug i-8017H and i-8024 into expansion slot in
PROFI-8455 in order.
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8. Adjust the rotary switches:
In previous step, we modify the address of DP-Slave to “1”, so we must adjust the rotary switches to 01 in PROFI-8455 panel.
9. Power supplied
：
Plug the power terminator with 24VDC to PROFI-8455.
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1. Click View->Logical Network View
2. Monitoring I/O data of Module(1):
Add the input signal of Module 1 (i-8017H) into I/O Watch.
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3. Monitoring I/O data of Module(2):
Add the output signal of Module 2 (i-8024) into I/O Watch.
4. Start Monitoring:
Click the right button of mouse at <Slave1>, choose Start to enable monitor.
I/O Watch window shows a list of present state of I/O, SymName with
Input00x is read-only, and SymName with Output00x is write-only.
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A GSD is a readable ASCII text file and contains both general and device-specific specifications for communication. Each of the entries describes a feature that is supported by a device. A GSD replaces the previously conventional manuals an supports automatic checks for input errors and data consistency, even during the configuration phase.
PROFI-8455 GSD file is located at ICPDAS Product CD and the following web site http://www.icpdas.com/products/Industrial/profibus/profi-8455.htm
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