Cooper-instruments-systems DFI INFINITY Digital Force Indicator/Controller Manual do Utilizador

DFI INFINITY SERIAL COMMUNICATIONS GUIDE www.cooperinstruments.com PH: 540-349-4746 • FAX: 540-347-47

Logic symbols are opto-isolated, and drive power is obtained from a galvanically-isolated transformer winding so that the differential signals (minimu

Table 2.4. Full-Duplex Hookup to the Computer METER (DCE) RJ-12 NEW OLDER PIN SIGNAL/ FUNCTION RS-485 RS-485 BD COMPUTER (DTE) D9/D25 +TX 1 1 (SE

Pressing the ‘MENU’ button saves your choices and advances to “ADDRES”. This is used to set in an RS-485 device from address 0 to 199 and is accompl

4.7 Full Duplex Two channels (e.g., two twisted pairs) with bi-directional data flow at any time (one simplex channel in each direction). 4.8 RS-232

To make the best use of the available storage, all possible bit sequences should be used, so each nibble can have 16 different values (not just the te

Table 4.2 Meter Receiving Voltages OPTION TYPE “1” BIT/MARK OR STOP BIT “0” BIT/SPACE OR START BIT RS-232 RS-422 OR 485 -3 > A > -15 V A< (B

Figure 6-1. Character Waveform The rising edge of the start bit of the next character may occur at any time after the end of the last stop bit. 7

7.2 Multipoint A device address from 0 to 199 is included in the COMMAND or RESPONSE message. By using the addressing capabilities, collision on the

7.4 The Meter As A Double Tasking Remote Meter The Process, Strain Gauge, Temperature and Universal meters can be configured as a double tasking remo

8. COMMAND AND RESPONSE STRUCTURE 8.1 Message String 8.1.1 “Data” and “Non Data” Each of the many types of messages between computer or printer and t

TABLE OF CONTENTS 1. INTRODUCTION ...

where nn = device address from 01 to C7 (hex) = 01 to 199 decimal. NOTE: Response detail is given in Section 8.8 and 8.9. 8.2.2 General Command Str

b) Multipoint mode: *nnccc[hh]<CR> For “Y” Command (Process, Strain Gauge, Temperature and Universal meters only): Remote Display a) Point-to

Command Suffix Item affected #Char Section V 01 Read data string 0 8.2.3 X 01 Read unfiltered value 0 8.2.3 Y 01 Write value to display 6

Command Suffix Item affected #Char Section G, P, R, W 40 RAM or EEPROM BLOCK A 60 10.25.1 G, P, R, W 41 RAM or EEPROM BLOCK B 38 10.25.2 R,

COMMAND SUFFIX ITEM AFFECTED # CHAR SECTION E 04 Set alarm mode - 7.2.2 G,P,R,W 04 Setpoint 4 value 6 11.16 X 04 Read time value 8 8.2.3 Z

COMMAND SUFFIX ITEM AFFECTED # CHAR SECTION G,P 41 RAM Block B Batch and (SQ RT): 34 Rate:36 11.32 R,W 41 EEPROM Block B Batch and (SQ RT): 50 R

2. Suffixes 0E and 0F are not used: the meter will respond to these with an error message. 3. The meter, upon completion of a BLOCK PUT (into RAM) Co

2) For the Rate meter/totalizer or Batch meters: [Sa][S<value>][SP<uuu>][S<value>][SP<uuu>][S<value>][SP<uuu>][S&l

?ee<CR>[<LF>] where “?ee” is the special code indicating an error has occurred as follows: 8.5.2 Error Message Table 8.4 Error messages

2. When in multipoint mode, the meter will test the command’s address with the one previously assigned after the recognition character has been match

8.5.1 Error Response Format... 23 8.5.2 Error

CHARACTER SP#5 SP#4 SP#3 SP#2 SP#1 M OFF ON ON OFF ON N OFF ON ON ON OFF O OFF ON ON ON ON P ON OFF OFF OFF OFF Q ON OFF OFF OFF ON R

Table 8.8 Description of Special Characters Used for Communication Commands CHARACTERS PROCESS, STRAIN GAUGE, TEMP., UNIVERSAL METER RATE/SQ METER B

Command format *15G1A<CR> Response format 15G1A15<CR> 3. Write “VLT” as units of measure into the EEPROM of the meter in the point-

c) meter’s address is “15 HEX” if it is used in the multipoint mode d) no line feed or checksum characters are included 1. Read serial recognition

10. Read block of data from EEPROM in point-to-point mode when the meter is operating in Batch Mode: Command format *R42<CR> Response forma

1. For Process, Strain Gauge, Temperature and Universal meters: a) Slow mode = 0 to 300 ms b) Fast mode = 0 to 100 ms 2. For Ratemeter/totalizer,

transmission. Specifically, if command “^AE” is transmitted, it will cause the meter to switch to COMMAND mode. To be able to communicate with the m

To use this command for the Process, Strain Gauge, Temperature or Universal meters, bit “BUS.8” must “=1” (Refer to Section 10.23). To use this comm

3. When “W” command is given, a reset is necessary to initiate the command. 4. “X” in bit pattern information means the bit is not related to that par

LOCKOUT FUNCTION CORRESPONDING ITEM =1 Locked L2C.8=0 =1 Unlocked Locked FIL.CNF: Filter Configuration L3 CNF: LOCKOUT CONFIG

11.3 Display Mode ...54 11.

Table 10.3. Input Range for Thermocouple BIT NUMBER 3 2 1 0 RANGE OR TYPE 0 0 0 0 J 0 0 0 1 K 1 0 1 0 T 0 0 1 1 E 0 1 0 0 N 0 1 0 1 DIN J 0 1

10.3 Reading Configuration (“RDG.CNF”) 2 Characters (2 nibbles) of data are used for all four 07 commands: Table 10.6. Reading Configuration (“RDG.CN

SC=(O2-O1)/(I2-I1) This value is entered/read with these “08”, 0B” and “17” command suffixes, and also used in calculating the corresponding Offsets

MSN are used for decimal point (referenced to the right-hand display dp position) as given in the Table 10.10. The remaining 5 nibbles (20 bits) are

Table 10.12 Input Configuration (“IN CNF”), Bits 4, and 3 BIT NUMBER 4 3 FUNCTION (VALID IN RTD OR TC MODES) 0 0 No transmitter 0 1 TC Transmitter

EXAMPLE: The computer wants to set meter #15 hex to center the decimal point and count-by-10. It transmits “*15P0C43<CR>”. These data are put

Table 10.18. Setpoint 1 Configuration (“SP CNF”), Bits 2, 1, and 0 BIT NUMBER 2 1 0 CONFIGURATION x x 0 SP 1 active above x x 1 SP 1 active belo

Table 10.22. Alarm 2 (SP 4) Configuration (“AL CNF”), Bits 5, 4, and 3 BIT NUMBER 4 3 CONFIGURATION x 0 AL 2 (SP 4) active above 5 x x x 1 AL 2

Table 10.26. Alarm 1 and 2 Delay BIT NUMBER 3/7 2/6 1/5 0/4 # OF ALARMS BEFORE ALARM IS ACTIVE 0 0 0 0 0 0 0 0 1 1 0 0 1 0 2 0 0 1 1 3 0 1 0

Table 10.27. Output Configuration (“OUT.CNF”) Bits 4, 3, 2, 1, and 0 BIT NUMBERS 4 3 2 1 0 SELECTS x x x x 0 Analog output disabled x x x x

1. INTRODUCTION This guide is intended to facilitate digital communication between your computer (or other controlling device) and one or more meters.

Table 10.30. Serial Configuration (“SER.CNF”) Bits 7,6 5, and 4 BIT NUMBER 7 6 5 4 ALARM 2 (SP 4) CONFIGURATION x x 0 0 No parity (automatically

Table 10.32. Data Format (“DAT FT”), Bits 7, 6, 5, and 4 BIT NUMBER 7 6 5 4 SELECTS x x x 0 Don’t send PEAK value x x x 1 Send PEAK x x 0 x D

Table 10.35. Bus Format (“BUS FT”), Bits 7 and 6 BIT NUMBER 7 6 FUNCTION x 0 RS-485 board not installed x 1 RS-485 board installed 0 x External

Each letter is represented by the two HEX-ASCII characters giving its ASCII table address, from “41” to 79” (all upper and lower case letters) or the

Table 10.37. Setpoint Values, Bits 23, 22, 21, and 20 BIT PATTERN 23 22 21 20 SIGN AND DECIMAL POINT 0 0 0 0 0 0 +FFFFFF. 0 0 1 0 +FFFFF.F 0 0 1 1 +

NOTE: R, W means “R” or “W” 10.25.1 BLOCK A This block consists of ten (10) items and thirty bytes (60 ASCII characters) as Table 10.39: Table 10.39.

10.25.4 EXAMPLE: Assuming echo mode; no line feed; checksum; and point-to-point mode. 1. Read Block C from EEPROM a) And send to the meter: *R42<

Table 11.1. Lockouts LOCKOUT FUNCTION CORRESPONDING ITEM L1 CNF: LOCKOUT CONFIGURATION #1 L1C.1=0 =1 Unlocked Locked Display of Setpoint

11.2 Mode Mode is one byte of data (2 characters). It uses the prefixes G, R, and W with the suffix 07. This byte controls the operating mode of the

11.4 Configuration 1 (“CNFG 1”) This item is 1 byte (2 characters). It uses command prefixes G, P, R, and W with the suffix 0A. The bit pattern is

Figure 2-1A. RS-232 Option Board Figure 2-1B Older RS-232 Option Board Refer to Figure 2-1B. When interfacing the meter to devices that do not ha

FUNCTION BIT NO. VALUE RATE AND SQ RT MODES BATCH MODE 3 0 1 SP 4 is active above SP 4 is active below 4 0 1 SP 5 is active above SP 5 is active be

Table 11.6. Configuration 3 (“CNFG 3”), Byte 2 FUNCTION BIT NO. VALUE RATE AND SQ RT MODES BATCH MODE 0-1 0 SP 1 output is normal (unlatched) 1

To write these values to RAM of meter #15, send the command *15P0C31C814<CR>. The meter will respond with 15P0C<CR>. 11.7 Configuratio

Table 11.9. Average Configuration (“AVG.CNF”) Bits 3-0 BIT NUMBER 3 2 1 0 NO. OF READINGS IN AVERAGING 0 0 0 0 1 0 0 0 1 2 0 0 1 0 4 0 0 1 1

Table 11.12. Pulsed Setpoint Values VALUE RESULT 0 AL TI is used for analog output ramping function 1 AL TI pertains to Setpoint 1 2 AL TI pertain

For example, you want your input scale to be 15.25. This equals a squared value of 232.5625. The value excluding the decimal point is larger than 10

Table 11.14 shows the decimal point value based on the decimal no.: Table 11.14. Decimal Point Values DP VALUE DECIMAL NO. (POWER OF 10 MULTIPLIER)

TOTAL Reading = (Raw Total) * (TOT SC) + TOT OF RATE Reading = (Raw Rate) * (RTE SC) + RTE OF BATCH Count Reading = (Raw_Batch_Count) * (BAT SC) + B L

11.18 Set Time (“SET TI”) This item is a special 3-byte value in Hex format. It sets the time on the display when the front-panel RESET button or th

11.20 Output Offset This item is 3 bytes (6 characters). It uses the prefixes G, P, R and W with the suffix 27. Bits 0 through 19 assign the value.

Figure 2-3. Rear of Meter with J4 Connection Figures 2-4A and Figure 2-4B show the four-wire RS-232 connections between the host computer/controller

Byte 1 (Least) = seconds, Max 59 Byte 2 (Middle) = minutes, Max 59 Byte 3 (Most) = hours, Max 99 EXAMPLE: You want to assign TIME of meter #15 to 7:

Table 11.21. Serial Configuration (“SER.CNF”) Bits BIT NO. VALUE FUNCTION 0 0 1 1 Stop bit 2 Stop bits 1-2 0 1 2 3 No parity Odd parity Even parit

These settings correspond to binary 00101011 = 2B Hex. Send the command *15P1B2B<CR>. The meter will respond with 151B<CR>. 11.25 Comm

Table 11.24. Serial Time (“SER TI”) Values VALUE FUNCTION 0 Transmit at each reading cycle 1 to 59999 (decimal) Transmit using this interval (in se

11.31 Calibration Items a) Analog Output. These items are each 2-byte Hex values (4 characters), that are on the back of the isolated analog output b

11.32.1 Block A (For G, P, R, W Commands) This block has different data length depending on meter’s mode. It consists of eighteen (18) items and th

Table 11.29. Block B for “G” or “P” Commands For Batch or Square-root Modes ITEM (HEX) SUFFIX DESCRIPTION BYTE NO. & ORDER 25 Serial delay 1 24

Command Prefix: “R” and “W”. It consists of 16 items, 26 bytes (52 ASCII characters) as shown in Table 11.32. Table 11.32. Block B for “R” or “W” C

CF 125 INFINITY SC GUIDE 74 M1519/N/0605 Table 11.34. Block E For “P” and “W” Prefix Commands For the Batch meter, Square-root and Rate Modes ITEM

Table 2.1. Meter Hookup (RS-232) to the Computer METER (DCE) COMPUTER (DTE) PIN SIGNAL/ FUNCTION RJ-11 RJ-12 D9 D25 RTS, meter from computer 1 2

JUMPER RS485 HALF DUPLEX RS485 FULL DUPLEX (CLOSE FOR TERMINAL RESISTOR) S3-B CLOSE OPEN S3-C (CLOSE FOR TERMINAL RESISTOR) * * S3-D CLOSE OPEN S3-E (