3-349-214-03 2/12.05 gossen metrawatt gmbh U1660 lon-add-on component meter reading module dqs certifizied per din en iso 9001 reg. no.1262 quality management system applications the lon add-on component is used for scanning measuring points within the energy control sy stem in a decentralized fashion. the U1660 meter reading module processes data from up to 8 energy meters with pulse output (s0), or floating contact. the active inputs do not require an y additional power supply which minimizes wiring expenses. the add-on component expands the functions offered by the u1601 summator, the u1602 micro-summator and the u1603 mini-summator to include external inputs via the lon interface. function U1660 is a meter reading module with eight active inputs. it determines energy and instantaneous power on the basis of so pulses. the valence of a pulse (delta) is calculated from the meter con- stant (ncipulserate). the pulses are counted (nvoenergypower) and converted into energy (nvo energy). instantaneous power (nvopower) is calculated from the distance between two pulses. the network variables nvoenergypower, nvoenergy and nvopower are calculated and transmitted after each pulse. the meter readings (nvoenergypower, nvoenergy) are lost upon auxil- iary voltage failure. in addition to energy and powe r measurement, the state of the binary inputs is transferred to the network (nvoinputstate[8], nvoallinstate). display elements power led on: oper ating voltage on active led on: s0 inpu ts are supplied with voltage. if the adapter is in unconfigured or offline state, the led is off and the so inputs are not supplied with voltage. error led signals the state of the lon node (?service led?), is activated for 2 seconds upon receipt of a wink command. on: module has no application blinking: module is not configured m1 bis m8 on: current flow via pulse contact of the meter controls service sockets direct lon bus access for service applications id key identifies the module in the network (?service key") ? 8 active s0 pulse inputs required pulse duration > 100 ms ? led state display ? ftt-10a transceiver (78 kbit/s) ? standard network variables for energy, instantaneous power and state ? led status display
U1660 lon-add-on component meter reading module 2 gossen metrawatt gmbh inputs 8 ea. s0 pulse per din 43864 the active inputs supply the power required for operation. the + terminals of the so inputs s 01+ ... s08+ are con- nected with each other. lon interface chip 3150 neuron chip protocol lontalk ? protocol technology lonworks ? ftt-10a ( f ree t opology t ransceiver) transmission via twisted pa ir (twisted 2-wire link) transmission speed 78 kbit/s lon network variables additional information: ? nvoallinstate supplies the state of all 8 s0 inputs. this has no effect on the energy and powe r measuring functions. each input is equivalent to one bit: example: nvoallinstate = 3 means: input 1 and input 2 are on (current flow), all other inputs are off. ? owing to the operating system of the neuron chip, the power values of small pulse distances are subject to heavy scatter- ing. ? use of U1660 without summator: the energy of the network variab le nvoenergy is calculated by means of float arithmetics with simple accuracy. the resolution of the float numb ers decreases with increasing value. the greater the value, the greate r the error resulting from the addition of an energy delta. the evaluating application must take this feature into account and ensure that the meter read- ings are deleted (nvienergyclear). alternatively, the network vari able nvoenergypower (number of pulses) can be used. it is not an snvt. example: ? use of U1660 with the u1601, u1602 or u1603 summators: the float arithmetic problems do not arise here because the number of pulses is tran smitted as integer number (nvoenergypower). power supply operating voltage 24 v dc closed-circuit current 85 ma operating current (at 100% load) 290 ma number name snvt range function 0 nvirequest snvt_obj_request 1 nvostatus snvt_obj_status 2 nvonodetype snvt_str_asc 20 characters device type (U1660) 3 ncidevicelabel snvt_str_ascii 31 characters device id 4 ... 11 nvoenergy[8]; snvt_elec_whr_f 0 ... 1e38 wh meter reading in wh (floating) 12 ... 19 nvopower[8]; snvt_power_f 0 ... 1e38 w instantaneous power in w (floating) 20 ... 27 ncipulserate[8] snvt_count_f 0,01 ... 1e38 / kwh meter constant in 1 / kwh (floating) 28 ... 35 nvoenergypower nonsnvt, 10 byte, for u1601 number of pulses (long), pmom in w (floating), reserve (uint) 36 ... 43 nvoinputstate[8] snvt_ switch state of binary inputs 44 nvoalllnstate nonsnvt, 1 byte, fr u1601 state of binary inputs cut-off day function: receipt of a time stamp acvtivates storag e to memory of the current meter readings 45 nvisettime snvt_time_stamp input for time stamp 46 nvotimestamp snvt_time_stamp time stamp for meter readings 47... 54 nvoenergyp[8] snvt_elec_whr_f 0... 1e38 wh meter reading in wh (floating) l?schen der z?hlerst?nde: 55 nvienergyclear snvt_lev_disc 0 ( off ) delete nvoenergy and nvoenergypower s0 input 8 7 6 54321 bit 87654321 value resolution 1 0,00000012 8 0,00000095 128 0,000015 2.048 0,00024 32.768 0,0039 524.288 0,063 8.388.608 1,00
gossen metrawatt gmbh 3 U1660 lon-add-on component meter reading module electrical safety type en 60950 protection housing ip 20 per din vde 0470 part 1 / en 60529 electromagnetic compatibility emc interference emission en 50090-2-2: 1996 interference immunity en 50090-2-2: 1996 ambient conditions operating temperatures 0 c ... +50 c storage temperatures ?25 c ... +50 c relative humidity 20% ... 90%, no condensation allowed mechanical design mounting din en 50022 system rail dimensions (h x w x d) 90 x 105 x 59 mm terminals 20 ea. single pole screw terminal dimensional drawing order information terminal assignments the + terminals of pulse inputs s0 1+ ... s0 8+ are connected with each other. description article number meter reading module 8 inputs (s0) U1660 59 105 90 44,5 all dimensions in mm U1660 screw terminals U1660 no. designation assignments 1 +24 v operating voltage + 2 lon a lon bus free free 5 s0 1+ meter 1 pulse contact + 6 s0 2+ meter 2 pulse contact + 7 s0 3+ meter 3 pulse contact + 8 s0 4+ meter 4 pulse contact + 9 s0 5+ meter 5 pulse contact + 10 s0 6+ meter 6 pulse contact + 11 s0 7+ meter 7 pulse contact + 12 s0 8+ meter 8 pulse contact + 13 gnd operating voltage ? 14 lon b lon bus free free 17 s0 1- meter 1 pulse contact + 18 s0 2- meter 2 pulse contact + 19 s0 3- meter 3 pulse contact + 20 s0 4- meter 4 pulse contact + 21 s0 5- meter 5 pulse contact + 22 s0 6- meter 6 pulse contact + 23 s0 7- meter 7 pulse contact + 24 s0 8- meter 8 pulse contact + U1660 1 13 12 24 pulse inputs free lon bus power supply
U1660 lon-add-on component meter reading module edited in germany ? subject to change without notice ? a pdf version is available on the internet gossen metrawatt gmbh thomas-mann-str. 16-20 90471 nrnberg ? germany phone +49-(0)-911-8602-0 fax +49-(0)-911-8602-669 e mail info@gossenmetrawatt.com www.gossenmetrawatt.com
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