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Summary of Contents for Milltronics PL-533
- Page 1 Interface Module for Allen-Bradley Remote I/O Instruction Manual PL-533 March 1997 33455330 Technology based. Customer driven.
- Page 2 Milltronics’ products. We endeavour to design equipment that is simple to use and reliable in its operation, with the aim of satisfying our customers’ needs. Milltronics has been designing and manufacturing process equipment since 1954. Our fields of expertise include ultrasonic level measurement, in-line weighing of dry bulk solids and motion sensing.
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Page 3: Table Of Contents
Troubleshooting ........... 23 Generally… Specifically… PL-533... -
Page 4: About This Module
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ABOUT THIS MODULE Milltronics SmartLinx module for Allen-Bradley is a ‘plug in’ communications circuit card designed to interface any Milltronics SmartLinx compatible device to Allen-Bradley Remote I/O. -
Page 5: Installation
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = INSTALLATION PHYSICAL Refer to associated Milltronics SmartLinx compatible device instruction manual for location or installation of the module. HARDWARE SETUP... -
Page 6: Software Setup
SOFTWARE SETUP GENERAL It is recommended to set up the Milltronics device as a 1⁄4 rack size, to conserve remote rack space available to the PLC. As discrete I/O operation is very limited when using 1⁄4 rack size configuration, block transfer read and write commands are recommended. -
Page 7: Operation
The default value is 0. P755 last rack The last rack is defined as the highest numbered rack on the Remote I/O link. Determine the position of Milltronics device and set this parameter accordingly. value: 0 = not last 1 = last The default value is 0. -
Page 8: Application Layer
The application layer is the name given to the organization and format of the discrete I/O and block transfer communications areas of the Milltronics device . All transactions between the PLC and the Milltronics device are either reading parameter values from the Milltronics device, or setting parameter values in the Milltronics device. -
Page 9: Text Messages
= (most significant byte of value) - 128 yy = (least significant byte of value) - 128 Text messages If an Milltronics device parameter returns a text message, that message is converted to a corresponding number shown in the table below: 22222... -
Page 10: Relay Function Codes
Relay function codes (parameter P111 only) Relay function codes are represented by unique numbers. ALARM LL_ALARM L_ALARM H_ALARM HH_ALARM INSIDE_BAND INSIDE_BAND_1 INSIDE_BAND_2 OUTSIDE_BAND OUTSIDE_BAND_1 OUTSIDE_BAND_2 RATE_ALARM RATE_ALARM_1 RATE_ALARM_2 TEMPERATURE_ALARM LOE_ALARM NON_SEQD 25 (for pump control) UNKNOWN_MODE PL-533... -
Page 11: Block Transfers
This section describes the meaning of the data read and written in block transfers to the Milltronics device. The data provided by the Milltronics device in a BTR operation to the PLC is set by a BTW operation. Block Transfer Write The words in the block transfer write operation allow access to the Milltronics devices in two ways: Multiple Parameter Access (MPA) and Single Parameter Access (SPA). - Page 12 All other bits are reserved and should contain 0. This word is ignored if the Milltronics device is configured as a full rack (P754 Rack Size set to 4). In that case, use discrete output word 7 to control point-on-priority.
- Page 13 Specifies the index for the parameter specified by BTW word 5. This word is ignored for parameters which don’t use multiple values. Some specific Milltronics device parameters use indices to address the multiple values stored within the single parameter. For example, parameters P054 level breakpoints and P055 breakpoint volumes use the index to specify which breakpoint to read.
- Page 14 1= set parameter to the value described by words 5–10 BTW Word 12: Operating Mode, SPA This word sets the operating mode of the Milltronics device. The device changes mode only when the status of the bit changes. The operating mode can be equally set via the device keypad.
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Page 15: Block Transfer Read
Block Transfer Read Values returned in the words in the block transfer read are in response to the block transfer write to the Milltronics device. Words 0 through 20 have values with fixed meanings and formats. Words 21 through 34 have values returned in response to BTW words 1 through 4, for Multiple Parameter Access (MPA). - Page 16 The reading is expressed as a percent of full scale, multiplied by 100, giving a range of 0–10,000 which corresponds to 0.00%–100.00%. Refer to the Milltronics device documentation for a definition of ‘P920’. Note these values may contain numeric level data for inoperative or malfunctioning points;...
- Page 17 These words contain the last values written to BTW words 5–7 and 9–11, respectively. They confirm that the parameter value has been written. These words are not updated until the value has been successfully transferred and stored in the Milltronics device. BTR Word 38: Value, SPA This word contains the current value of the parameter identified by BTR words 35–37...
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Page 18: Discrete I/O
Remote I/O. In order to effect this type of operation, communication must be carried out using Block Transfer. However, output word 7 allows scan point priority of the Milltronics device to be altered. The number of discrete input and output words available is determined by the rack size as configured on the SmartLinx module. - Page 19 These bits should be ignored, or ‘masked off.’ 10–11: reserved These bits are reserved for future Milltronics use and should be set to 0. 12–14: decimal Contains the value which indicates where the decimal place should be, for all of the returned values 1–6.
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Page 20: Discrete Input Words
7. If this word is used to control point-on-priority, then the Milltronics device must be configured to permit this. Parameter P720 must be set to 1 (manual, BIC-II or SmartLinx) for each point to permit priority control for that point. -
Page 21: Discrete Input Words
Determines the direction of shift for the decimal (bits 12–14): 0 = shift left 1 = shift right If bits 12–14 are all 0, this bit may be ignored. numerical format Indicates the numerical format for the returned values: 0 = normal 1 = % of span PL-533... - Page 22 0000 1000 0000 0000. Bits 0–7 must be ignored. Bits 10–11 indicate the Milltronics device is configured as 1/4 rack. Bit 16 indicates the returned value is in engineering units. Bits 12–14 are binary 010, or 2, indicating two decimal places in the returned value.
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Page 23: Troubleshooting
If FAIL is indicated, either the module is defective, or the module connector on the Milltronics device is defective. If “ERR1” is indicated, the Milltronics software doesn’t recognize the ID number of the installed module. Please contact Milltronics or your distributor for instructions and/or upgraded Milltronics SmartLinx compatible device software. - Page 24 PLCs may accept only a limited number of racks. Try setting the rack number to a lower available rack number. A4.3: Try manually adding the Milltronics device to the PLC remote I/O scan list. If the problem persists, contact Milltronics technical support.
- Page 25 I tried to set an Milltronics device parameter using a block transfer write, but the parameter remains unchanged. A7.1: Some parameters can only be changed when the Milltronics device isn’t scanning. Try putting the Milltronics device in program mode, either using the keypad or the run/program mode bit in the discrete output image table.
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