This is historical information of device classes implemented in PyPLC device server.
Use this link to find the valid information.
Development status:
Released
Information status: New
Contact:
Class Description
- This device server will allow to interact with the Modbus PLC`s.
- The target is reading and writing variables and input/outputs of the PLC by using Tango Attributes. Tango Attributes will be generated dynamically using this syntax:
Families: InputOutput
Key words:
Language: Python
Contact:
Class interface
Attributes:
Commands:
| Name | Description |
|---|---|
| CoilsInput: DevVarShortArray Output: DevVarShortArray |
None. |
| WriteIntInput: DevVarShortArray Output: DevVoid |
None. |
| StateInput: DevVoid Output: State |
This command gets the device state (stored in its device_state data member) and returns it to the caller. |
| StatusInput: DevVoid Output: DevString |
This command gets the device status (stored in its device_status data member) and returns it to the caller. |
| RegInput: DevShort Output: DevShort |
None. |
| HoldingRegInput: DevShort Output: DevShort |
None. |
| InputRegInput: DevShort Output: DevShort |
None. |
| IeeeFloatInput: DevShort Output: DevVarLongArray |
None. |
| CoilInput: DevShort Output: DevShort |
None. |
| FlagInput: DevVarShortArray Output: DevShort |
None. |
| BitInput: DevVarShortArray Output: DevShort |
None. |
| RegsInput: DevVarShortArray Output: DevVarShortArray |
None. |
| HoldingRegsInput: DevVarShortArray Output: DevVarShortArray |
None. |
| InputRegsInput: DevVarShortArray Output: DevVarShortArray |
None. |
| Regs32Input: DevVarShortArray Output: DevVarLongArray |
None. |
| WriteLongInput: DevVarLongArray Output: DevVoid |
None. |
| WriteFloatInput: DevVarStringArray Output: DevString |
None. |
| WriteCoilInput: DevVarShortArray Output: DevVoid |
None. |
| WriteFlagInput: DevVarShortArray Output: DevVoid |
None. |
| updateDynamicAttributesInput: DevVoid Output: DevVoid |
None. |
| evaluateFormulaInput: DevString Output: DevString |
None. |
| isLockedInput: DevVoid Output: DevBoolean |
None. |
| LockInput: DevVoid Output: DevVoid |
None. |
| UnlockInput: DevVoid Output: DevVoid |
None. |
| setLogLevelInput: DevString Output: DevVoid |
None. |
| SetModbusCacheConfigInput: DevVoid Output: DevString |
None. |
| ReconnectInput: DevVoid Output: DevString |
None. |
Pipes:
Properties:
| Name | Description |
|---|---|
| Modbus_nameDevString | The name of the Modbus Tango Device used to communicate with the PLC. All the information related to the communication must be specified using the Modbus device properties. |
| LogLevelDevString | Default console output configuration. |
| MaxModbusQuerySizeDevLong | Maximum amount of data that can be asked in a single Modbus request. |
| MappingString[]Type | Arrays to be permanently updated, declared like : ARRAY:0,+120 #(VarName:StartAddress,+ArrayLength) |
| ModbusCacheConfigDevLong | If ModbusCacheConfig>0 then it will update CacheConfig and CacheSleep properties of the Modbus device using Mapping values. |
| ModbusTimeWaitDevLong | Number of milliseconds to wait between asynchronous Modbus calls |
| DefaultReadCommandDevString | Default read command executed by Reg and Regs commands |
| AddressOffsetDevLong | Integer offset added to Addresses in every Modbus command call. |
| ErrorTimeWaitDevLong | Number of milliseconds between retries after a Modbus error |
| DynamicAttributesString[]Type | Attributes and formulas to create for this device. This Tango Attributes will be generated dynamically using this syntax: T3=int(Reg(7007)/10.) The commands Coil; Flag; Reg and fReg will allow to declare Digital; Bit; Integer and Float variables respectively. |
| DynamicStatesString[]Type | This property will allow to declare new States dinamically based on dynamic attributes changes. The function Attr will allow to use the value of attributes in formulas. ALARM=Attr(T1)>70 OK=1 |
| DynamicQualitiesString[]Type | This property will allow to declare formulas for Attribute Qualities. |
| DynamicStatusString[]Type | Each line generated by this property code will be added to status |
| KeepAttributesString[]Type | This property can be used to store the values of only needed attributes; values are `yes`, `no` or a list of attribute names |
| KeepTimeDevDouble | The kept value will be returned if a kept value is re-asked within this milliseconds time (Cache). |
| CheckDependenciesDevBoolean | This property manages if dependencies between attributes are used to check readability. |
| UseEventsString[]Type | Value of this property will be yes/true,no/false or a list of attributes that will trigger push_event (if configured from jive) |
| LogLevelDevString | This property selects the log level (DEBUG/INFO/WARNING/ERROR) |
22 Feb 2018, DS Admin
Updated:
The device class has been updated.
You can see previous version here .
20 Apr 2017, Piotr Goryl
Updated:
The device class has been updated.
You are looking at this version now.
23 Feb 2017, Piotr Goryl
Created:
The device class has been added to catalogue.
Updated:
The device class has been updated.
You can see previous version here .
20 Apr 2017, Piotr Goryl
Updated:
The device class has been updated.
You are looking at this version now.
23 Feb 2017, Piotr Goryl
Created:
The device class has been added to catalogue.
Added by:pgoryl2
on:20 Apr 2017, 1:10 p.m.