Arosa Schafisgade project – new touristic resort – Switzerland

The Arosa Schafisgade project includes construction of three houses with each six luxury apartments. The houses are located in a potential unstable slope. During excavation work adjacent houses above the new built ones had to be monitored geodetically. Between the new excavation and the existing houses borehole inclinometers had been drilled and monitored to detect […]

Monitoring works for the 2014 Sochi Winter Olympic Games – Russia

Sisgeo, thanks to the collaboration with its Russian partners AGT Systems and GPIKO, furnished and installed all the equipments necessary to monitor the most important road and railway works that are under construction in Sochi area, that is the neural centre of 2014 Winter Olympics.The monitored works are: retaining walls for the protection of roads, […]

Cleaning-up project of Panama City and Bay

The cleaning-up project of Panama City and Bay includes: Construction of Health Service networks Construction and rehabilitation of Collectors and Drive lines Interceptor system Plant for wastewater treatment. These elements will be developed to collect, transport and treat wastewater of Panama City which is currently discharged directly into the bay or rivers and streams in […]

FAQ#116 – How do I configure a WR-Log digital node to read RS485 Sisgeo TIMED sensors?

Sisgeo digital instruments can operate in two powering modes: TIMED or ALWAYS-ON (for more information see F.A.Q.#094).A string of mixed instruments consisting of TIMED gauges and ALWAYS-ON gauges cannot work.The first thing to do is therefore to check that ALL connected instruments in your array are set to TIMED mode.You can check the powering mode […]

FAQ#111 – Why I cannot read correctly my 4-20mA current loop gauge?

It could be a problem connected to the power supply given by the readout or logger. When the power supply is in the current loop (2-wire gauge) it is necessary to consider the effect of voltage drop across the shunt resistor on the voltage applied to the gauge. For example, suppose a 4-20mA gauge requires […]

FAQ#094 – Which are the available powering modes for SISGEO digital sensors?

All SISGEO digital gauges can be settled in two different powering mode: The STANDARD powering mode is ALWAYS ON, so unless otherwise requested by the Customer, the sensors are settled as default in ALWAYS ON.

FAQ#076 – Pourquoi est-il nécessaire d’ajouter une résistance de terminaison au dernier capteur numérique de chaque chaîne RS-485?

Tous les instruments numériques SISGEO (IPI, clinomètres, H-Level…) utilisent le protocole de communication série RS-485. Le protocole RS485 requiert l’ajout d’une résistance de terminaison. La connexion recommandée pour une chaîne utilise des nœuds « point à point » (multidropped) en mode bus (line). Les connexions réseau en étoile, circulaires ou ramifiées ne sont pas recommandées. […]

FAQ#075 – What parameters are saved in SISGEO digital sensors? What information must the Customer provide when ordering?

All SISGEO digital sensors (e.g. IPI, BH Profile, MD Profile, LT Inclibus, Tilt-meter, RDS, H-Level, etc.) use the Modbus communication protocol over RS-485 serial. SISGEO digital sensors are connected to each other with a single signal cable. The parameters that are configured at the factory for each digital sensor are as follows: Upon confirmation of […]

FAQ#074 – Quel type d’enregistreur de données est nécessaire pour lire les mesures des capteurs numériques SISGEO?

Les relevés des capteurs sont lus en connectant le câble à une unité maîtresse Modbus (à savoir, OMNIAlog ou miniOMNIAlog) avec une interface RS-485 (DCE, Half duplex, no Echo) en mesure de gérer la communication avec le protocole de communication Modbus RTU SISGEO. La documentation relative au protocole de communication de SISGEO est disponible sur […]

FAQ#073 – Quel est le nombre maximal de capteurs numériques (RS-485, Modbus), le nombre maximal de chaînes et la longueur maximale du câble dans un réseau RS-485?

Last update: October 2021 All the SISGEO digitized sensors utilize a RS485 interface with Modbus protocol. 1.The maximum number of digitized sensors in a RS-485 network are 247 (theoretical) 2.The maximum number of digitized sensors chains that is possible to connect to Modbus master unit (as OMNIAlog or miniOMNIAlog) are 4. 3. About the maximum […]