Digital weight transmitter

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TLL : Digital weight transmitter (RS232 - RS485 - Synchronous Transmission)

TLLANA : uscita analogica / analog output.

Options on request :

CASTL IP67 box version with transparent cover
CASTLPG9 transparent version with 6 PG9 cable glands
CASTLGUA transparent version with 6 PVC fi ttings
CASTLTAST IP67 box version with external keypad
CASTLTASTPG9 keypad vers. with 6 PG9 cable glands
CASTLTASTGUA keypad version with 6 PVC fi ttings
IP67 ATEX version II 3GD (zone 2-22)

Weight indicator and transmitter for Omega/DIN rail mounting suitable for back panel or junction box. Six-digit semialphanumeric display (8mm h), 7 segment LED. Four-key keyboard. Dimensions: 123 x 92 x 50 mm. IP67 box version dimensions: 170x140x95 mm. Four fi xing holes diameter 4 mm (centre distance 122x152 mm).

Technical Features :

	POWER SUPPLY and CONSUMPTION	12 - 24 VDC +/- 10% ; 5 W
	No LOAD CELLS IN PARALLEL and SUPPLY	max 8 ( 350 ohm ); 5VDC/120mA
	LINEARITY / LINEARITY OF THE ANALOG OUTPUT	< 0.01% Full Scale / < 0.01% F.S.
	THERMAL DRIFT / THERMAL DRIFT OF THE ANALOG OUT.	< 0.0005 % F.S. /°C < 0.003% F.S. /°C
	A/D CONVERTER	24 bit (16000000 points) 80Hz
	MAX DIVISIONS (with measure range: +/- 10mV = 2mV/V)	± 999999
	MEASURE RANGE	± 19.5 mV
	MAX LOAD CELL’S SENSITIVITY	± 3 mV/V
	MAX CONVERSIONS PER SECOND	80 conversions/sec.
	DISPLAY RANGE	- 999999 ; + 999999
	DECIMALS / DISPLAY INCREMENTS	0 - 4 ; x 1 x 2 x 5 x 10 x 20 x 50 x 100
	DIGITAL FILTER / CONVERSION RATE	0.080 - 7.5 sec / 5 - 80 Hz
	LOGIC RELAY OUTPUTS	N.4 - max 115 VAC / 150mA
	LOGIC INPUTS	N.2
	SERIAL PORTS	synchronuous transmission, RS485, RS232
	BAUD RATE	2400, 4800, 9600, 19200, 38400, 115200
	HUMIDITY (condensate free)	85 %
	STORAGE TEMPERATURE	- 30°C + 80°C
	WORKING TEMPERATURE	- 20°C + 60°C

Main functions

SYNCHRONOUS SERIAL COMMUNICATION :

	It is possible to connect several TLLs to a PLC using a single CS signal, a single CLK signal and a DATA signal for each TLL connected.
	Gross weight without decimals is sent; to achieve maximum speed the PLCinput delay time has to be below 1ms.
	Communication between TLL and PLC works as follows: PLC raises the signal on terminal 14 (CS). TLL replies by raising the signal on terminal 12 (DATA) to show that it is ready to transmit.
	At this point the PLC raises the signal on terminal 13 (CLK = clock) and the transmission starts.
	TLL sends a bit (0= low signal, 1=high signal) on terminal 12 (DATA) at every rising edge of the CLK signal sent by PLC. The weight bit number can be set to speed up the transmission; take into account the maximum weight value you need to transmit: 10 bit = 1023, 12 bit = 2047, 14 bit = 4095, 16 bit = 65535, 17 bit = 131071, 20 bit = 999999.
	You can also enable the sign transmission (a bit before weight bits: high signal=negative weight; low signal=positive weight) and input status transmission (IN3-IN4: two bits after weight transmission: high signal=input closed, low signal=input open).
	Weight bits are transmitted from most signifi cant bit (215) to less signifi cant bit (20).
	Example (16 bit): 0101000111000010 = 0+16384+0+4096+0+0+0+256+12 8+64+0+0+0+0+2+0 = 20930.
	If sign and input status are transmitted, 3 more bits are sent: example: for weight +20930, input 3 open, input 4 closed, the following bit sequence is sent: (sign bit) 0, (weight bits) 0101000111000010, (input bits) 01; total 19 bit (if 16-bit weight transmission is selected).
	During data transmission CS signal has to be high; if in any moment CS signal goes low communication is aborted and the transmission has to be restarted.

Load cell connection continuous check.

RS485 and RS232 serial outputs for connection to remote display, PC/PLC up to 32 instruments (max 99 with line repeaters) by ASCII Laumas protocol (compatible with W60000) or ModBus RTU. Optional Protocols: Profi bus DP, Ethernet/ModbusTCP, USB and Radio by appropriate converter.

THEORETICAL CALIBRATION is performed via keyboard.

the two inputs can work as net/gross weight, zero-setting and peak.

the four outputs can be set independently as N.O. or N.C. and work as setpoint, stable weight signal or they can be managed by PLC or PC.

ANALOG OUTPUT VERSION (mod. TLLANA) :

	Opto-isolated 16-bit analog output 0-20 mA; 4-20 mA (max 300 ohm); 0-10V; 0-5V; ±10V; ±5V (min 10 kohm).
	You can match zero and analog-output full scale and the corresponding weight values.

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